Gantz

Psyren addpermalink

I like to  think of Psyren as the shonen-version of Gantz.
both series involve a "game" with real lives at stake, set up by some mysterious person, while the main characters try to beat the game to win back their freedom or for other goals later realizing there´s more at stake 

reportRecommended by Toost_Inc

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Good drawing, good story line. Similar to Gantz, they get teleported to a different world and have to fight unknown monsters 

reportRecommended by astro1848

Psyren resembles GANTZ only at the beginning of the series. People are sent somewhere unknown and have to fight for their lifes in order to end "the game". The art gap is huuuuuuge. But both series are amazing. 

reportRecommended by droolled

Though the settings and tone differ, the core of both stories and recurring events are really similar. Gantz, though, is much more mature (Gore, sexual themes, bloodier, and a lot grosser). 

reportRecommended by artist-retired

Psyren is Gantz for kiddies...  Main Character is used by some mysterious entity (Gantz-Gantz, and Psyren-Nemisis Q) and are warped to another... well place. They have to complete some sort of objective before thy can go home.The endings are different, but they both start out very similarly.. 

reportRecommended by Keiz

Both Gantz and Psyren involve a game were the prize is your life. Gantz is more brutal and more  for an older audience   

reportRecommended by TheBigOtaku122

Both have a plot where the main character(s) are transported to an alternate reality type setting. Both involve the idea of a 'game' that the main character(s) are forced to participate in against their will, and they will be snatched randomly and transported into the 'game'. Gantz tends to have more mature content and more gory death scenes than Psyren, but both story lines are very interesting, although Gantz has a darker and more dangerous feel. =.= 

reportRecommended by KyII

There are "games" in both series with real lives at stake, set up by some mysterious person. The main characters at first try only to survive the game, but later realize that the outcomes of "games" might just decide the fate of humanity.  

reportRecommended by bunny1ov3r

A death game, the characters of both manga are thrown into a game where they have to fight in order to survive, because if they die in this game they die in the real world too. How and why they end up in that game is a mystery. Follow these characters as they try to survive and figure out how the mystery. If you like action manga with gore then this is perfect for you! 

reportRecommended by Darkbow

Gantz without all the blood and gore and add in a couple supernatural powers and what do you get? Psyren. Both manga have survival games where the main character is fighting against something beyond his comprehension.  

reportRecommended by Rance-sama

Both involve a death game in which it is unknown of its true purpose, it involving killing monsters , gaining points and goals.
Differences - Psyren enters the game through a card calling machine where in Gantz you enter the game by dying, both are great in terms of building tension.
Gantz is extremly gory, dark and wierd and you are likely to not feel sorry for anyone due to the huge amount of deaths.
Psyren is more esp related with superpowers and is funny, where Gants is more serious with action packed stuff like guns and swords. 

reportRecommended by Zaker82

other world , with the same type of vibe! 

reportRecommended by Sterben

Both manga are about supernatural death games with a lot of fights, mysteries and surprises. 

reportRecommended by xShinigami3125

Battle Royale addpermalink

Both follow the same concept of people being forced into a death game. Both are very graphic and gory with interesting story and characters, GANTZ is a little more supernatural  with more nudity as well but above all both are very similar. 

reportRecommended by Vexys7

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I thought I'd made this recommendation already. I hadn't. (True story...)

After reading the BR manga, I went on to read the novel. There's a world of difference between the novel and its completely over the top manga adaptation. The simplest way of explaining it is for me to tell you to imagine the author of Gantz, Oku, was allowed to insert as much graphic violence and nudity as humanly possible, while keeping the story and characterisation as is.

Remember that part in the novel where - in a flashback - the Terminator/final boss character plucked an eyeball out at school?... No? What about the part where a girl reverse-raped a boy to reward him, as he lay dying from a wound in his stomach?... Still no? Ok, then: you MUST remember the bit where, in a martial arts showdown with the series' final boss (one of the best fights ever, FYI) the good guy hit the bad guy with a mini-kamehameha?...... I give up.

If you loved Gantz for its boobs, violence and general craziness, you'd LOVE BR to bits. Seriously. read more

reportRecommended by AironicallyHuman

If you enjoy blood, gore, action, sex, and lots and lots of death then these are the perfect series for you to check out. 

reportRecommended by ayaseyue

Both incredibly graphic and gory manga, with the concept of deadly survival games with a lot of killing involved. Whereas Gantz goes for the sci-fi approach, Battle Royale goes for realism. ^_^ 

reportRecommended by Master10K

Do you need a good old fight for survival in form of a male-aimed, game-like graphic gore fest? Look no further.
Both have students and bombs, sex and guts, wimpy jerks and manly chads. Gantz also throws aliens in the mix. The readers will likely root for some characters and loathe others deeply, struck with the brutality and meanness extents of human nature. 

reportRecommended by RenaPsychoKiller

Both are horror-action series that are unusually heavy on the bloody, gore, and sexual content and have forced kill-or-be-kill battle set-up. 

reportRecommended by lithiumflower

Both are violent, exciting, and carefully drawn. Both are based on the idea of an extreme TV show using unsuspecting members of the general public. 

reportRecommended by Ren-Socks

Characters fight to survive, and if they try to run away then a bomb goes off in their head. It has the same feeling of hopelessness that runs through Battle Royale, and while reading Battle Royale I was shocked at some of the similarities. If you like one then you will like the other. 

reportRecommended by Tumerking

Gantz and Battle Royal both take random people away from society into a type of "game" where the only way to survive is too kill. 

reportRecommended by Dorped

Combining graphic violence with a game style concept and gimmick, Gantz and Battle Royale are classic survival horror series.  Both series consists of a group of characters trapped in a death game where they must fight in order to survive. The follow a different set of rules and principles but the core of the themes remain. Both series' main male protagonists also adapts similar personality with a strong dedication to survive. Throughout both series, we learn much more about the other players and what awaits them. 

reportRecommended by Stark700

While Battle Royale deals a lot more with character development, there are many similarities that are present between the two series'.

In terms of sex scenes and overall nudity, the same elements are in Gantz, although in a more extreme state. 

Another great similarity is the AMAZING amount of realism that both of these manga contain, luring the reader in with relatable stories and setups. 

If you're into the horror aspects of BR, you'll certainly like Gantz! In fact, I would say that the brutality in BR does next to NOTHING to prepare you to some of Gantz's more extreme scenes.

reportRecommended by Shatteredxx

They're both about survival games
They both have a lot of action,gore and nudity 

reportRecommended by QueenOfHeroes

Both Battle Royale and Gantz are similar in many ways.

First off, both of them have a group of people put into a place where they must kill or be killed. The only difference is the Battle Royale focuses on only one such setting, while Gantz has multiple characters go into this setting multiple times. Plus, in Battle Royale, the people are killing humans, while in Gantz, aliens are being killed.

Both have extremely similar styles of art, with tons of gore and nudity present in both of them.

Overall, both of these manga, are similar in a multitude of ways and if you like one, you'll most probably like the other. read more

reportRecommended by LPGeneratorx

Berserk addpermalink

Both have violent but cool fighting scenes and even some sex together with interesting stories. Beserk follow a medieval fantasy world while Gantz is set in alternate present cyberpunk. Both main characters are also affected by unknown forces. 

reportRecommended by acceleratum

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This is a very mature, violent, bloody, seinen, dark manga. The manga has been around since like 1990 (so it's been over 20 years!!!) and the story is simply AMAZING. I am very impressed by the creator of Berserk. I watched the anime first and then jumped straight to read the manga. The anime only covers like 10% of the whole story and the manga is not even finished yet. This is another AMAZING manga. 

reportRecommended by iETHAN

Hundreds and hudreds of very graphic and detailed deaths. Lots of main characters die. There are explicit sex scenes, violations and a lot of gore. Probably the two hardest mangas I have read. 

reportRecommended by BlindNoldor

Both have a lot of gore and some sex/ecchi elements. 

reportRecommended by ricardocsc

If you like stories with a fantasy setting then you should read on. Both of these manga take place in a fantasy setting, but that's not all they also contain a lot of violence, blood and gore. So if you are interested in these type of manga then you should give these two a try because they are the best in their genres. If you like one of them you will probably enjoy the other one as well! 

reportRecommended by Darkbow

Out-of-this-world monsters, violence, blood gore and sex... It is so similar in this aspect is was surprising. However, one revolves around revenge while the other is more about saving humanity. If you just love violence and gore, then both these are just for you. 

reportRecommended by Shirayuki76

Berserk and Gantz have quite a bit common. Be it the very mature themes, to nudity, language, to over the top violence. They are both very dark in theme, and the characters are very detailed and fleshed out. Once you start reading either manga, they are hard to put down.

In Berserk, the main character, Guts, is fighting off supernatural forces, whereas in Gantz, the main character(s) are fighting extraterrestrial beings. Both mangas have the people battling against the odds, making it feel like it's a few people fighting the world. Oh and they both have gigantic swords. 

reportRecommended by g_ikari

- Both are Seinen
- Very detailed artstyles
- Huge amounts of violence, gore, and sexual content
- Both have nightmare fuel incarnate creatures (Aliens and Apostles) The enemies get stronger and more insane as each chapter progresses in both manga's
- No one is safe in both worlds
- Both manga's have the main protagonist and others battling the unknown and trying to win even when they are pushed to the limit
- Both manga series have had long runs
- Well written and well designed characters 

reportRecommended by EpicBlargman

This too has a death plot, where anyone can die anytime, lots of killing, supernatural beings, intense action, amazing world building and the art is similar to Berserk too. Enjoy. 

reportRecommended by intelanands

Small fight big, small sometimes win, mostly lose 

reportRecommended by jk317

Grotesque monsters, over the top violence, blood, nudity and gore. If your looking for a manga with these things then I suggest you start reading now, both will have you hooked from beginning to end. Berserk differs being a fantasy set in medieval times, with a more direct story revolving around the main characters. While Gantz differs by being a sci-fi set in modern times, with characters tasked to take down monstrosities.
 

reportRecommended by Akoram

blood and guts are really cool. only difference is that gantz doesn't really have story it's basically mindless violence.  

reportRecommended by gavdw

Jagaaaaaan addpermalink

Reads like Gantz 2.0 so much that it's surprising it isn't authored by Oku Hiroya.

Features a selfish MC that develops.
Starrs wacky monsters for brutal fights, features explicit content routinely and has a mascot for comedy relief between fights.

It's like someone fused Gantz with Parasyte: The Maxim.

reportRecommended by ValtElf

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Jagaaaaaan had a lot of gore, sex and action just like Gantz. Both have supernatural stuff hounding on. Also the art style kind of reminds me of Gantz. And the characters are not completely likeable just like in Gantz. It's an enjoyable manga because if you like Gantz you most likely will like Jagaaaaaan.  

reportRecommended by Lemedicus

Both have egoistic main characters that have great character development throughout the story with a great side cast. And the best part about both titles are the wacky, interesting and cool fights, and the designs of the monsters are extremely good.  

reportRecommended by flottings

Jagaaan and Gantz are very similar in terms of style: monsters, gore and sex. The battles in the first two volumes are comparable to the ones with the bird or shorty aliens. Jagaaan's protagonist also has a really good development, which is another similarity to Gantz. If you enjoyed the madness of Gantz, then Jagaaan is a must-read. 

reportRecommended by pavkata

-Heavy emphasis on main character growth
-Brutal violence
-disgusting horror
-psychological horror as well
 

reportRecommended by KuroGFX

weird setting, weird creatures, alien-ish, useless characters just dying without contributing anything for the plot, only killing and gore, MC trying to bring back dead girlfriend, SEX, BOOBS. 

reportRecommended by Greenia

 I would basically say this is a mix of Junji Ito, Gantz, Sweet Home and Parasyte:The Maxim

It's similiar in the sense that it's not afraid to display brute personalities within it's characters and how they differentiate themselves, in other words, they feel unique, and also, they're mostly batshit crazy. The depiction of gory fights reminds me a lot of Gantz, considering the common occurence of individuals exploding in not so family friendly ways.

reportRecommended by Flobo23

Similar arrogant selfish mc, Awesome designs, ecchi, aliens, 14 year old male fantasy 

reportRecommended by m43strx

La historia es bastante diferente, pero mantiene el toque gamberro que tiene Gantz y todo tipo que censura que omite este también lo hace Jagaan. Si bien es una historia que no está a la altura de Gantz, es igual de disfrutable que este (quitando algunas escenas que no deberían de existir porque no tienen sentido o es algo innecesario para la trama). 

reportRecommended by Ivan_y_punto

Terra Formars addpermalink

Both deal with a team of people sent out to fight against an alien threat that is constantly becoming stronger. They both also constantly drive home the fact that "no one is safe." Lots of balls to the wall awesome moments as well. 

reportRecommended by Vexys7

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Two good sci-fi titles in which a team of humans are sent to fight an alien threat equipped with technological enhancements to even out the odds. 

reportRecommended by AfterGlow

Gory series with revolving casts, centered around an uphill battle between powered humans and strange beasts. 

reportRecommended by walla

Terra Formars and Gantz are Seinen action manga. They both have Sci-Fi elements and involve humans fighting monsters/aliens they know little about using sci-fi weapons and powers given to them. The characters in both are never safe as many are frequently injured/killed when fighting because the enemy becomes stronger each time. If you enjoyed one of them and are looking for another manga which is just as explicit, gory and violent then I'd definitely recommend that you read the other! 

reportRecommended by dkjiji

A small group of people is fighting a threat that might kill all of humanity, they are the only hope we have left. That's the bad news, the good news is that they are becoming stronger and might just be able to pull it off. Ready far a stunning story with a dark setting and lots of fighting for your life? Then start reading these manga right away! 

reportRecommended by Darkbow

It has alot of similarities to gantz. The team's in both mangas get scifi weaponry and abilities to fight the enemies. Gantz is mysterious and random with the alien enemies while the Terraformar cockroaches are the primary enemies but with hints at mysterious origins. There is alot of gore in both mangas, alot of people are killed off, and the enemies try to adapt and overpower the humans as much as possible. In some aspects the artstyle feels similiar as well. 

reportRecommended by EpicBlargman

Both series deal with fighting Aliens from another planet, interesting stories for the both with some badass fights.  

reportRecommended by Seiidou

Both have crazy amount of violence, extremely terrifying aliens, etc. 

reportRecommended by kofum2002

Inuyashiki addpermalink

It's kind of obvious since both are made from same mangaka, but they are revolving around the same themes as well, saving the world, becoming powerful unexpectedly, action and bang bang ドンドン！ this time it's Suzuki from gantz who've forgotten everything that happened, gotten older and weaker. Well not literally, but if you've read gantz you kind of get the idea. Bang bang! ドンドン！great stuff.  

reportRecommended by txrxgxu

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Shingeki no Kyojin addpermalink

What connects Gantz and Shingeki is their equally brutal, unflinching violence. Gantz offers 'guilty pleasure' elements (namely, huge boobies) not present in Shingeki, but in both titles characters are introduced and then, without warning, murdered in graphic detail. The intensity level of two is high enough to keep one on the edge of their seat throughout.

If the games from Gantz excited you, then the giants raiding the last home of humanity - and ripping humans apart like toys - would also excite you. The quality characterization in the two makes it impossible not to care. 

reportRecommended by AironicallyHuman

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Both these seinen publications revolve around the constant battles between human beings and the creatures who they must kill in order to survive. Lots of graphic brutality that often result in the loss of life. 

reportRecommended by radiantfire

Both deal with human slaughter on a massive scale. Whenever the enemies show up you never know exactly who is going to die; all you know is that somebody will. If you like how the fights are portrayed in Gantz than you will undoubtedly like Shingeki no Kyojin and vise-verse. 

reportRecommended by Tumerking

Shingeki no Kyojin is very similar to Gantz, in that the protagonist is an overpowered human forced to fight for his survival by killing other powerful species (aliens in Gantz and giants in Shingeki) about whom he knows practically nothing. The enemies seem to attack humans for no discernible reason.
Both have significant amounts of blood and gore and visceral action, though Gantz has it much more than Shingeki. 

reportRecommended by froody1911

Both have gore and psychology elements.

Shingeki no Kyojin is in a medieval world, while Gantz it's in present time.

Gantz has a higher quality art. 

reportRecommended by ricardocsc

Even though the demographic is Shonen, Shingeki feels like a Seinen. Both Gantz and Shingeki share Psychological topics and violent gore aspects. Characters are killed left and right and there's a struggle and feeling of hopelessness in both worlds from all the chaotic events taking place. There's also alot of mystery to both worlds including the enemies they both fight. In the case of Gantz, no one knows what Gantz truly is or why these creatures are attacking them. For Shingeki no one knows what the titans are or where they came from, how they are made, how they function, or why they are attacking humans.  read more 

reportRecommended by EpicBlargman

Giant man-eating monsters, the fate of humanity in the balance and group of people tasked with taking these monsters down. Shingeki no Kyojin differs by being a shounen with a medieval-like setting, while Gantz is a sci-fi set in modern times being a lot more graphic due to its seinen demographic. So if your looking for some high top action, monsters, blood and gore I suggest you begin reading one of these series. 

reportRecommended by Akoram

All You Need Is Kill addpermalink

In these two, death is only the beginning. 

Initially average lead characters find themselves confronted with monsters and fight death-matches over and over AND OVER until they become killing machines without fear or doubt. Not even death itself is an escape since characters are revived in Gantz and death results in a never-ending time loop in All You Need Is KIIIIIIIILLLLLLL. 

There is no other similar characterisation that I have encountered. There are plenty of survival series out there, for sure, but none where characters grow mentally stronger by dying and gradually abandoning fear. Death being the starting point of both series, rather than an end that will never come to pass due to your typical main character plot protection in other series, makes for unique and gripping reads.  read more 

reportRecommended by AironicallyHuman

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Both manga are very gory and as the story progresses the main characters get more used to the bloodshed. 

reportRecommended by virtualkillerv1

Main characters go through countless loops in which they have to fight against aliens who descended upon earth. Both have bad-ass, determined protagonist who does not hesitate to strike down enemies. 

reportRecommended by bunny1ov3r

Both are set in game-like situations, one where you basically respawn and the other where you fight continuous boss battles yet with lives on the line.
Both bring up love interests with the male protagonist and a cute female.
Both are incredibly brutal and not for the light-hearted.
Both are very enjoyable, only 'All You Need Is Kill' is too short and 'Gantz' is too long >< 

reportRecommended by haydocc

The main characters go through loops in which they have to fight against other-worldly beings who landed on earth. Both have amazing protagonists who don't hesitate to strike upon the enemies. 

In both series there is a heavy atmosphere of improvement in the protagonists eyes, on if they can not improve, it will ultimately be their downfall in life. 

A bit of a warning Gantz is much more bloody and gory than All You Need is Kill. And in my opinion much more story driven than action driven.  

reportRecommended by Thanatos--

Your stuck in the same circumstances over and over again, facing up against an unstoppable force of powerful aliens, equipped with a power suit and your progressive knowledge of the battlefield, how will you win? How will you live to see to tomorrow? But how much trauma must you suffer first? So are you looking for a manga with about such a situation? Well I suggest you go read one of these. Gantz differs with a mysterious system tasking a group of individuals to work together to battle against a variety of alien monstrosities. While All You Need Is Kill dictates the life of a rookie soldier as he becomes trapped in a time loop, hence focusing on his struggles to find an escape and win the current war against aliens. So if your looking for a blood pumping sci-fi action manga about fighting against alien monsters I suggest you read one of these immediately. read more 

reportRecommended by Akoram

Imawa no Kuni no Alice addpermalink

They are both about people being forced into a death game. The both pretty much start off the same way, although the characters are different.  

reportRecommended by Fermorals

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Btooom! addpermalink

Being dragged into a 'game' in reality, you have to kill to survive! 

reportRecommended by Connybaum

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Kamisama no Iutoori addpermalink

Let's see...

-- An endless series of 'play or die' games, where survivors from each game must continue to work together.
-- The enemies in both are aliens... until the aliens start being dicks and make humans fight it out. There's no text-sharing black sphere in Kamisama but the aliens themselves tend to be quite chatty, with the same sort of twisted humour.
-- Almost anyone can die. Getting attached to characters is a bad idea (until Kurono appears in Kamisama with his 100-points, anyhow).
-- No attempt is made to explain why, exactly, people are finding themselves forced to go at it with weird as hell enemies (Gantz goes to shit once info is shared). And a high-schooler slaughtering people with a sword is just normal. Accept it!

Kamisama is a lil' more shounenish than Gantz with its typically average>winrar lead and a girlfriend character or two wanting his 2D dick from the get-go, but it's in the same magazine as Shingeki and there aren't any orange ninjas. I like it.

The games play out more along the lines of Liar Game than Gantz, but with aliens and its sense of humour and level of craziness... read more 

reportRecommended by AironicallyHuman

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Survival games with lots and lots of deaths. The protagonist is the plain marginate and depressive high school guy that wins confidence through the series. 

reportRecommended by BlindNoldor

Manga that involve game in which contestants are trapped somewhere, and are forced to fight each other to death. Contestants often have to fight bizarre aliens that pop out of nowhere. High gore contents in both manga. 

reportRecommended by bunny1ov3r

Both based on school kids and supernatural survival games, which have the characters battling for their lives in weird, tense and dark scenarios. 

They both share the same atmosphere although they differ in the games themselves. Gantz revolves more around action based gun wielding fights, while Kamisama deals with the characters wit and their ability to decipher the 'rules' of each game using their physical strength. Never the less, the main characters must overcome their fears and in turn be courageous in order to survive the wacky games.

The games both share the same weird but wonderful enemies, together you and the characters will be confused but entertained by the entities that they face.

Finally, you never know what will happen to the main characters as they equally keep you second guessing and may have some shock results!
 read more 

reportRecommended by Mem521

 - Death games where almost everyone dies
 - Weird aliens killing everyone (beat them to stay alive)
 - HIGH gore content
Although in my opinion, Kamisama is based on more of a brain game in which you have to think to win while Gantz is more fighting with guns and brute force, the two are very similar. 

reportRecommended by meowneko999

High risk survival manga with multiple rounds that differ from each other by one thing or the other. The main character starts out slow and gradually becomes the central figure for everyone's survival. 

reportRecommended by joe_g7

Zetman addpermalink

The too are very similar killing monsters because you have to, blood, gore, death, ect.  The only main difference is in Zetman the main character is a "Player" or monster that is designed to kill the other monsters.  In Gantz it is regular humans that have died and are now sent to kill random alien/monsters.  The art work on both are amazing and the thought that goes into both are amazing. 

reportRecommended by cappy

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I Am a Hero addpermalink

Both Mangas are very dark, mature, bloody, violent, horrific, and all things that make a good seinen. They both have the premise of fighting to survive, aliens and Zombies with the latter. They also are similar in that later in their stories they things become extremely grandiose in scale and that affects humanity on an existential level. Though they both possess a similar tone, they differ greatly in approach with characterization . As Gantz is more of the cliche cool/bad ass guy that kills everything with his friends, while I am a Hero follows a guy the opposite, being delusional, socially awkward and a bit of a pacifist in a world outbroken by zombies.

 read more 

reportRecommended by reluctantbeeswax

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- Art style
- Easy to read
- Good history, bad end 

reportRecommended by Ruan_Lobato

I feel these manga are quite similar due to their otaku main characters and very basic initial premises both gradually becoming larger in nature, incorporating foreign (to japan) story lines and characters. In addition to that, both manga are also heavily traced and have subplots that go nowhere. 

reportRecommended by 20_EYES

Gantz and I Am a Hero both have a very similar ending utilizing a bastardized part of Buddhist philosophy called saṃsāra as a part of their narratives.

The use of saṃsāra has been criticized and praised by fans of both series.
Criticized because it undermines the sacrifice of all the dead characters that can now be revived/ are revived and praised for bringing back fan favourite characters.

Depending on whether you liked that aspect of the story or not you should consider reading or not reading the other story.

Update It’s been a month since I posted this and in that time I got a couple of people asking how saṃsāra fits into the narrative of both stories and where you can see it occur. This was included in my original version of this recommendation but MAL accidentally deleted it, as a result, I'll have to try to summarize it again and not spoil anything. 

To start off with I'll have to explain what Saṃsāra is as a lot of people are confused about it. 
Firstly saṃsāra in any religion doesn't specify that reincarnation/rebirth needs to be in the form of a human and does not specify the individual has to be aware of their prior self. Secondly, when you go through saṃsāra you're not supposed to remember your past. (samsara is also observed in other religions but because of the form it takes in both series it is evident it's based on Buddhist saṃsāra and considering that Buddhism is the only religion in japan that practice samara it makes sense the authors base their bastardized version off of it)

In the case of the ZQN  in I Am a Hero they are still physically Zombies but they regain a part of if not all their consciousness/memories depending on the individual and point in the story. The most apparent time in the series this is shown is when the Nameless Mass of Brains (NMB) is shown communicating with the people inside itself. The zombies/people integrated into the NMB hive mind, have regained their sanity, intelligence, emotions, memories and personalities from when they were human  (source chapter 231). Fully conscious ZQN also appears in chapters 188-190 and 217.

There was never a definitive answer to what the ultimate fate of humans will be but you can infer from the aforementioned chapters that the *Spoilers* aliens intend to keep the consciences of humans and turn them into tools in potential some kind of hive mind. This lessens the impact of the destruction of humanity as instead of being wiped out they have been enslaved. *Spoilers*

Moving on to Gantz, it talks about how the concept of saṃsāra works in their world in the Room of Truth or Alien God chapters 369-372. 

In chapter 372 someone inquired if flesh and blood were really all there were to humans' existence, questioning the existence of the human soul. The God Aliens then clarified if the "soul" he was referring to is the 21 grams of data released the moment a human died. It then started to explain that such a thing indeed exists. It then explained that when a human dies, this 21 grams of data migrates to a separate dimension. It is then extracted from the separate dimension and then imported into a new body when a new human baby is born.

I can't get into how this fits into the overall story without spoilers but I can say that this encounter leads to the undermining of all the sacrifices in the story.
 read more

reportRecommended by ATCkit

-both are very mature 
-both are at its core manga about people trying to survive 
-both feature a protagonist who trough bad things happening around him finds a purpose in life  

reportRecommended by jeanbokai

Kamisama no Iutoori 2 addpermalink

Survival games with lots and lots of deaths. 

reportRecommended by BlindNoldor

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Deadman Wonderland addpermalink

both gantz and deadman wonderland are sci fi stories in which the main character is wrapped up in something he doesnt want to have to deal with. Both mangas are also very bloody so if you enjoy the gore either will fill your needs.  

reportRecommended by musashi7

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Blame! addpermalink

Both have high tech crazy weapons, awesome backgrounds, and awesome stories ,an d awesome 

reportRecommended by Bendero

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Chainsaw Man addpermalink

In both manga:

- the protagonist is part of a group of people tasked with slaying bizarre supernatural foes in a modern urban environment;
- the battles get quite violent and brutal;
- there is an underlying agenda about their fights;
- protagonist's character experience growth along the way;
- features drama that brings a tear to my eye. 

reportRecommended by Genoard

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Liar Game addpermalink

In a way it's similar to gantz, since people are basically forced to be a part of a 'game', the purpose of which they aren't told.
 

reportRecommended by justafan

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Fire Punch addpermalink

The emotional and physical hurt are thicc as hell in both of these manga. Very violent and full of gore, though Fire Punch is a good bit less sexual. Both teenage boy protags deal with feelings of guilt and answer the consequences of their own selfishness in a world in which they feel forced to kill due to incredibly powerful, mysterious forces acting on a large scale. Both manga disrespect plot armor: loved characters *will* be lost. 

reportRecommended by tsubashi

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Kiseijuu addpermalink

Scifi stories with horror elements. Both are thought-provokingly psychological and highly suspenseful with great drama and interesting storylines, and they both also contain deadly enemies and extreme violence. 

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Claymore addpermalink

Both share semi-realism art style, gore and dark athmosphere. 

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Eden: It's an Endless World! addpermalink

both contain extreme violence and people just trying to survive in the situations they find themselves 

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:REverSAL addpermalink

Both series are about a group of people that are forced into a kill-or-be-killed "game" on a regular basis with little warning, in which the monstrous opponents are not the only threat. Gantz has a lot of blood, gore, and sexual content, while :REverSAL is light on the blood, has little gore, and no sexual content. 

reportRecommended by lithiumflower

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Highschool of the Dead addpermalink

If you like GANTZ you will love Highschool of the Dead (HOTD) as well. Both have a kick ass main character and tons of hot girls that somehow tie into the story plot. In GANTZ you follow a team of individuals as they are summoned on missions to kill off aliens, while given extremely powerful weapons. In HOTD you read as a group of high school students are forced to fend off zombies and fight for their lives, trying not to get bitten. As in GANTZ, HOTD is filled with blood and violence as the band of average individuals try desperately under circumstances they have never encountered before, resorting back to their primal instincts only to find that the world is a game of "survival of the fittest." read more 

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Hellsing addpermalink

I dont know what people think of Hellsing and Gantz but to put them both in a nut shell. gore, more gore, and destruction.  Hellsing is a Alucard killing off his own kind (vampire) and Gantz is a group of people killing aliens.  Both have very detailed story lines.  Gantz would be a little more gory because there is more fighting involve but Hellsing is a great way to laugh (depends on how you like gore).   

reportRecommended by cappy

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Manga: 100-man no Inochi no Ue ni Ore wa Tatteiru

100-man no Inochi no Ue ni Ore wa Tatteiru addpermalink

The games in both manga follow very similar rules:
* Characters are transported to an alternate world/space at some intervals
* They are given Quests which they have to complete in order to return
* Life on the line, if everyone dies the "game" is failed

There might be even more similarities ("game masters" are strange looking men who give out quests using their strange 'lingo') So if you like manga with such game elements it might be interesting for you. Gantz is mature audience oriented compared to 100-man, however both stories get rather complex and interesting as story goes on! 

reportRecommended by Lylaaz

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Uzumaki addpermalink

When reading Uzumaki, it made me think of GANTZ regardless of being different plot-wise. The morbid and twisted scenes, along with the weird and strange creatures that definitely have a likeness to the Aliens featured in GANTZ.  

reportRecommended by Gonee

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Gigant addpermalink

In a bizzare scenario, Earth is put into a danger by some outer forces. A regular folk protagonist gets acces too a weird technology that lets them fight of the danger. Both have interesting enemy design, photo-like illustrations, contain both action and nudity and are in fact made by the same author. 

reportRecommended by abystoma2

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Mahou Shoujo Site addpermalink

Mahou Shoujo Site is basically a magical girl remake of Gantz (which is basically a seinen action remake of the mahou shoujo genre ;) ). People get chosen by a supernatural force, they kill each other and stuff happens. What makes Mahou Shoujo Site stand out is the great characters and a solid story (and lots of violence!). In my opinion it has more in common with Gantz than Madoka Magica. 

reportRecommended by txrxgxu

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Sekai Oni addpermalink

It has the same premise where people get sent into a 'room' of sorts and have to defeat certain entities. 

reportRecommended by Sushigawa

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Kaijuu 8-gou addpermalink

Gantz and Kaiju #8 share some similarities with their general premise:

-Monster tech in the form of power suits and weapons = Alien tech in the form of power suits and weapons.
-Overwhelmingly powerful monsters that are large-scale threats = Overwhelmingly powerful aliens that are large-scale threats.
-MC has a childhood friend who he wants to be like and stand alongside = MC has a childhood friend who he eventually wants to be like and stand alongside.
-MC can't risk revealing his secret power = MC can't risk revealing his secret alien hunting sprees. 

reportRecommended by Captainjeddy

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Tokyo Ghoul addpermalink

Similar dark and gory vibe to Tokyo Ghoul, Gantz removes the ghouls, adds aliens, more guns, and maybe a few less dead people. Definitely a good read if you're looking for a lighter, but still dark manga. 

reportRecommended by TheAlch3mist

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Minimum addpermalink

Both MC's get thrown into a death game. Minimum has not been serialized for as long and is just starting to get more into the fighting rather than the nudity which it capitalized on in the earlier chapters. If you enjoyed Gantz you will probably enjoy Minimum since the targeted demographics are exactly the same.  

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Eques addpermalink

There's a character that says "doesn't that looks like Gantz?", that pretty much explains everything about this one-shot. 

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Hakaijuu addpermalink

Human fighting some mysterious monsters? that's what this manga have in common. there are even human fighting in some suits in hakaijuu, well you have to read it i won't spoil that much. but if you've liked gantz you will like this title and the around! 

reportRecommended by shinomonogatari

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Re:Birth: The Lunatic Taker addpermalink

Both main character die and come back alive 
In Gantz they are revive as Gantz Hunter and they must fight with alien to gain point so they could leave the game.
In Re:birth- The Lunatic Taker they are revive as takers, to live on they must either kill other takers and get their point or they must go and hunt tenshi. 
Both manga give off the same feel and action~
Gantz is more of sci fic and contain more chapter the Re:Birth 

reportRecommended by tianshenzai

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Bokurano addpermalink

Both manga have teams of involuntary people formed to fight to save the world. 

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Aphorism addpermalink

Both Aphorism and Gantz have the main idea of surviving against strange beasts/aliens. Both are really bloody and grotesque.  

reportRecommended by InfiniteRhapsody

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Eden no Ori addpermalink

Both involve people in their teens being tossed into a life-or-death situation where the normal rules of society no longer apply. 

reportRecommended by Torisunanohokori

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ənígmə addpermalink

Enigma is similar to that to GANTZ in that a group of characters are dictated to perform missions which are set by mysterious figures (which the titles of the two series are named after). Such missions are governed by a set of rules and oftentimes require characters to work as a team in order to succeed. 

reportRecommended by radiantfire

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La Mosca addpermalink

If you enjoy the mystery and bloodshed that GANTZ has brought to the table, you'll enjoy La Mosca(The Fly) with a passion. Even now the GANTZ manga still provides mysteries to solve after several years of chapters and volumes but every good as the last, La Mosca has such potential to come out like GANTZ, both providing monsters to kill, prizes to earn, and hot deadly girls. 

reportRecommended by NoSurrender

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Dandadan addpermalink

While Gantz have a darker tone, Dandadan is more light hearted. Both have ailens/monsters and both have the characters fight in closed off realitys.  

reportRecommended by Blue-kun

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Zero no Shiniki addpermalink

Despite being different genres and being under different circumstances, The stories are somewhat similar in that the main character is periodically sucked into a situation that is a considered a life or death game. In shiniki you get money, in gantz you get points. One is sci fi while the other is fantasy, if you like one, you might like the other.  

reportRecommended by Thedudeist

Baron Gong Battle addpermalink

Grotesque and bizarre creatures, with a lot of violence, action and ecchi 

reportRecommended by Metalerogreymon

Sword Art Online: Aincrad addpermalink

Gantz is a death game where people are forced to to kill. So the premise is similar, although the setting is completely different. One is fantasy, while the other is sci fi. being a game, SOA doesnt have any actual gore, while Gantz is more mature with both gore, and mature content. If you like one, you might enjoy the other if you want to feed on some misery in different forms. 

reportRecommended by Thedudeist

Solo Leveling addpermalink

Both series focus on MCs who were dragged into game-like systems that confront them with various monsters. As they grow mentally and physically stronger their quests becomes tougher. Epic fights are included.

Gantz is more gory, ruthless and complex. 

reportRecommended by anime_hunter420

Revolt addpermalink

Both stories are very similar because both plots involves a game that the main character play.  

reportRecommended by haatsunemiku

Koroshiya 1 addpermalink

Both series are bloody violent and those looking for gore shouldn't look any further than these two. 

reportRecommended by radiantfire

Freesia addpermalink

Freesia is grittier than gantz, but they have the similar existentialistic theme where you can read it both for the plot and the action. I love both and if you can stand the sketch like art and darker psykological theme you'll surely love freesia.  

reportRecommended by txrxgxu

Kurozuka addpermalink

In terms of violence and gore, Kurozuka seems to less exaggerated than Gantz. Although you are guaranteed to see guts flying in both cases. In terms of the narration, both story present a very unique and experimental style. Gantz having to constantly changing the characters while Kurozuka constantly time jumps (2 first volumes already cover a few thousand years). Both have this mysterious supernatural plotline well hidden along the action. 

reportRecommended by wakka9ca

Azumi addpermalink

Azumi feels like an inspiration for Gantz, both the excessive violence and the main character's vulnerability. Apparently Azumi is a famous classic so that wouldnt be very strange. If you like psychological action, Azumi is a great read, even if the art feels a little dated. 

reportRecommended by txrxgxu

Gangsta. addpermalink

Without spoiling too much, both are very violent and very tragic. The plot isnt very similar, but the tension in the plot is. If you like Gantz you'll probably like Gangsta, they even share the same first letter in the title, must mean something. 

reportRecommended by txrxgxu

Ayanashi addpermalink

Although at first Gantz starts off at a small scale, the later chapters become similar to the setting in ayanashi in the idea of humanity being cornered. Its a long read, if you dont enjoy gantz itself, then it wont be worth reading all the way up to the point that led me to make this recommendation. Otherwise, please enjoy.
 

reportRecommended by Thedudeist

Biorg Trinity addpermalink

In the genre "unwillingly receiving super powers and killing stuff" Gantz is regarded as one of the corner stones, for good reasons. Even if Biorg Trinity starts out pretty confusing it really grows within a few chapters, and I'd say it's a great read for anyone who's into this kind of story. Just like Gatz the premises deepens and gets more intricate, together with some of the best art in the history of manga. 

reportRecommended by txrxgxu

Chaosic Rune addpermalink

If throwing Gantz and Hunter x Hunter into a blender results in Psyren, then throwing any of the Yugioh series into a blender with Gantz results in Chaosic Rune.

Seriously, the only differences between the 2 series is that Gantz is much more graphic, and Chaosic Rune uses cards to fight instead of guns.  However, both series have a lot of fanservice, and both are very violent. 

reportRecommended by RoarkTenjouin

Kiriko addpermalink

If you enjoyed Gantz you will "like" Kiriko and the sequel as they have similar vibes at times with the existentialism, human nature, cruelty, dealing with the unknown, escaping, death, with constant suspense and adrenaline. 

reportRecommended by koley

Dorohedoro addpermalink

Crazy mega violence with lots of crazy shit as well 

reportRecommended by KuroGFX

Kokou no Hito addpermalink

Both series exclusively centers around the protagonist and their life, there will indeed be a lot of side characters that will occur by itself, their presence will impact the protagonist but they are not all so important to the progression of the story. Similar to Gantz, The climber will start off as a more light and fun series but the more you go through each chapter, it'll get heavier. 

reportRecommended by Zestiria

Manga: Shinai naru Boku e Satsui wo Komete

Shinai naru Boku e Satsui wo Komete addpermalink

Pretty gory and dark seinen manga. They both have a great story which have big elements of mystery. There are also some nudity and stuff like that. Overall both great and interesting stories and if you are a fan of either one then you should definitely check out either one. 

reportRecommended by stone_tree

Houseki no Kuni addpermalink

Gantz and Houseki share the same feeling about character dump in a complexe world who evolve by risking their life. I love the way that in both story main character evolve and become more and more pragmatic.  

reportRecommended by Rebfy

Tsui no Taimashi: Ender Geister addpermalink

Both have lots of popular culture references. (every Ender Geister chapter lists the references it has)
Both have supernatural and sci fi elements and lots of action.
Both have considerable amounts of fanservice.
Both are very over the top and hilarious at times. 

reportRecommended by TheNextDoor

Nemuri no Fuchi addpermalink

Honestly this manga reminded me of a that Gantz feel though it wasn't excecuted/written as well as Gantz, if you want to see something generally better I'd suggest checking out Gantz. I think you can see the character visual design/art as something vaguely similar to Gantz as well. 

reportRecommended by Dpsdps55

Doubt addpermalink

Similar plots Gantz is more supernatural and the enemies are aliens but beyond that it's like a mirror to Doubt. 

reportRecommended by Vexys7

Gestalt addpermalink

- seinen, survival game, god's game, thriller and blood everywhere
- MC with selfish personality
- kill something that don't want to
- have point/score system
- anyone can be killed anytime
- similar dress design
- playing some school song before game starting 

reportRecommended by RyuiZaya

Kyoushoku Soukou Guyver addpermalink

These two manga have characters using bio suits fighting other powerful evil monsters. They both deal with themes of the darker sides of human nature. Not to mention, these two manga are filled with action, blood, gore and violence. Definitely recommended these two manga for anyone who enjoys dark violent manga. 

reportRecommended by Genocyberfanboy

Dragon Ball addpermalink

they both share the concept of meet a certain objective  to have a wish fufilled (Gantz score 100 or more points  and Dragon Ball  collect 7 dragon balls) and typically   wishing a friend or comrade back to life is the common wish in both series   and usually these things are tedious to obtain so much battles and adventures    they go through great lengths just to obtain each thing. similar game..similar request.. 

reportRecommended by Josiah-Joestar

Akira addpermalink

why akira? cause makes a lot of references, of people getting awesome powers, gravity.... 
The end of the world... so many references. But the real reeference is in akira. In gantz doesnt  Develops so much 

reportRecommended by Whiskys12

Sanctuary addpermalink

Both of them are dark, violent, action-packed, and contain sexual imagery. They both fit within the seinen demographic and are definitely similar, even as one is a political thriller (Sanctuary) and another is a science-fiction manga (Gantz).  

reportRecommended by donut_jelly

Shokuryou Jinrui addpermalink

Modern day sci-fi, decapitation/sliced body parts and moody teens fighting off terrifying aliens invading the earth.  

reportRecommended by denpanosekai

Ajin addpermalink

Artsyle wise, both of these are some of the most realistic feeling manga I have ever read. Both are dark seinens with a sci-fi/supernatural edge. Both main characters are even named Kei, and aren't all that likable at first ;p Gantz is the more vulgar between the two, but both have a similar feel that I am sure Ajin fans would like.  

reportRecommended by Capnskart

Zodiac Game addpermalink

Both are mangas that deal with games that play with life and death. Both have characters who are killed then revived to fight in a "game" of life. Battles with monsters determine whether you will be able to live the next day or not. Though, GANTZ deals with a lot of sci-fi idealogies, including technology and 'aliens'. 

reportRecommended by Jasonbear

Hoshi no Samidare addpermalink

Both involve the characters participating in rounds after rounds of combat against mysterious enemies that get bigger and stronger as the series proceed. In addition, readers can feel the impact in the deaths of the characters of both the series. 

reportRecommended by BlitzAceSamy

Duds Hunt addpermalink

Both titles revolve around a game best described as death match, although one is set in our reality while the other has more of a Sci-Fi-like setting.  

reportRecommended by Turin2609

Houkago Hokenshitsu addpermalink

On the surface, these two seem as far off as two series can be but from the get go you'll notice how the big event that changes the protagonist's lives are similar in that they are absolutely vague, have little foreshadowing and seems to have rules that are randomly inserted. 

Gantz is the more graphic series but as hard as it is to envision due to the artwork and the genre, After School Nightmare is actually the more violent series and a whole lot more important characters die in it.

In the end, it is best to treat this recommendation not as a "what do you want to read next" but as an introduction test for which one of this series gets you more interested as the pacing for these type of series can be very rough (if not boring by virtue of being laid out with too many generic cliches before you get to the good parts) but they contain enough out of nowhere events that they are worth checking out so it's best to find a series that will better ease you into the whole thing. The reason it doesn't work as anything other than an introduction recommendation is that it's similar in exactly the opposite way Alien is similar to Jaws. Both protagonist want to be heroes. Both are horny men that act like they have PMS. Both have nearly the same pacing. But despite all these, they are as aesthetically different as they come and chances are it's too easy to dismiss these two as similar. read more 

reportRecommended by Foolness

Basilisk: Kouga Ninpouchou addpermalink

Both Manga have Violence and Nudity, although the setting is very different (Ninjas X Aliens) both have the same dark atmosphere surrounding them, from the unwillingness of the main character to fight, the relationship of the characters they are both pretty similiar 

reportRecommended by 7911

Manga: Yakuza Girl: Blade-jikake no Hanayome

Yakuza Girl: Blade-jikake no Hanayome addpermalink

Blood, violence, sex, and boobs. GANTZ is the more pessimistic of the two by a long shot, but if you're in it for the fighting and fanservice, well there you go. 

reportRecommended by lithiumflower

Ibara no Ou addpermalink

A group of people are given a second chance at life but end up having to fight monsters to survive 

reportRecommended by AfterGlow

Yakusoku no Neverland addpermalink

When reading Neverland I thought it had also similarities with Gantz:
- Fighting against demons/aliens 
- A lot of deaths
- Humans as a livestock
- Strong willed main characters
So if you are into these kinds of stories you could try both out 

reportRecommended by Lylaaz

Mahou Shoujo of the End addpermalink

Another gory and creepy as shit series.  Both are about the same level of quality.  Mahou Shoujo though feels more like Dawn of the Dead though to be honest.  But they both kill off anyone they want to really.  You don't really feel safe about anyone.   

reportRecommended by DarkD1

Code:Breaker addpermalink

This is a very promising manga - I read the first 30 chapters and I totally loved it, but I took a break because I wanted it to publish more chapters before I start reading it from the beginning again. This manga is also a MUST -it is really really good. 

reportRecommended by iETHAN

8.1: Yamada Yuusuke Gekijou addpermalink

If you like dark manga with macabre, puppet master-esque storylines, like 8.1, then Gantz would be right up your alley. 

reportRecommended by anumericalevil

Otogi Matsuri addpermalink

Group of people get special powers in order to fight aliens/demons. All characters have their own more or less tragic backstories. Both titles have lots of blood, gore and deaths. Gantz is little more mature  

reportRecommended by Gokudo-kun

01 addpermalink

They are both made by the same mangaka. They both put in a sci-fi, ecchi and action environment.
If you liked Zero one you will love Gantz which is far more complexe and contain more chapters. 

reportRecommended by Petitchat

Jisatsutou addpermalink

Kid that nobody really believes in steps up. In Gantz a bunch of people have o fight aliens in almost like an alternate universe and kei is the leader.The story has a lot of gore, there's rape, it's mature but very good. In Jisatsutou Sei is a nobody who attempted suicide, sent to an island with other attempted suicidal people, and uses his kick ass archery skills to survive. It's very good as well. 

reportRecommended by Ardnaed

Trace addpermalink

In both GANTZ and Trace, there are people who are chosen to protect society even though the truth about them always seems to be hidden. Also, in both manga, there are different groups who are fighting amongst each other until an enemy comes that is powerful enough to make them realize their mistakes and unite to defeat a common enemy. Although the people in GANTZ don't have powers like those in trace, they are equipped with futuristic weapons and suits that give them the ability to combat the enemy. 

reportRecommended by santaclause

Zombie-Loan addpermalink

After the moment they die, a group of people is resurrected and given a mission to protect the people against supernatural beings, aliens in Gantz, zombies in Z-Loan. For killing this monsters they will win a reward, points in Gantz, money in Z-Loan, and if they reach an amount of points or money they will be able to come back to live again. 

reportRecommended by BlindNoldor

Jiraishin addpermalink

They exploit the darkest side of a rotten humanity. Rape, murder, drugs, and stuff is seen as normal thing in the human race. Never care about others, only about yourself. 

reportRecommended by BlindNoldor

Tenkuu Shinpan addpermalink

Both are about people trapped in another world, set up by some mysterious person, with situations that put their lives at risk, enemies and deaths. Tenkuu Shinpan has more shonen style and paranormal powers and gantz has futuristic weapons
If you liked one of them you'll probably enjoy the other.
Enjoy the reading 

reportRecommended by Neok200

Tokyo Akazukin addpermalink

both manga are dark,mature,involving Monster-like ability
and Blood Everywhere 

reportRecommended by yakoo

Joshikouhei addpermalink

Both are edgy ultraviolent action manga with some existential horror and a lot of horny. 

reportRecommended by sumo671

Apocalypse no Toride addpermalink

Both manga's involve a weak main character being put in a penitentiary were he meets a group of companions that will help him stay alive and sane. Both Protagonists eventually find out that the human race is being attacked by another species and of course they take up arms to stay alive seeing no end insight. The main characters start to adapt and become better and better at staying alive almost like they where born for a disaster like this to happen. Both Manga's share  Action, Mystery, Horror, Sci-Fi, and Psychological genre components. 

reportRecommended by Obeythealfa

Manga: Narutaru: Mukuro Naru Hoshi Tama Taru Ko

Narutaru: Mukuro Naru Hoshi Tama Taru Ko addpermalink

Gantz is humans vs aliens where as Narutaru is humans vs humans using aliens.  

reportRecommended by Kaguro

Grappler Baki addpermalink

Both are that "just turn your brain off" type of manga, packed with action scenes and also very graphic. 

reportRecommended by abluble

20th Century Boys addpermalink

The people are forced to be a part of a 'game', the purpose of which they aren't told. Both protagonists seek to find the "bad guy" and aim to end the senseless game in which they were plunged into unknowingly. 

reportRecommended by PirateKingz

Blue Lock addpermalink

Despite different genres, both stories have similar main characters that start out ordinary but have to survive and overcome intense challenges by their own quick thinking and self-improvement. It definitely gives the reader that rush. Also, there are cool teams in both series. 

reportRecommended by bmw830

Mirai Nikki addpermalink

Protagonists thrown into a semi-supernatural fight for survival (with a low chance of actually making it out alive) while trying to maintain an ordinary life. Violence, desperation, intermittent insanity, and things you can never unsee ensue. 

reportRecommended by lithiumflower

Sidonia no Kishi addpermalink

Both deal with humans fighting against aliens. They are dark, and have a heavy atmosphere and a unusual storytelling, with many scenes without words. Both are similar in the characters design. 

reportRecommended by BlindNoldor

Red Garden addpermalink

The basic plot is so similar it's not even funny. They even both have a Gonzo anime adaptation.
Group of high schoolers dies ---> They come back to life ---> They are forced to fight against monsters/aliens for initially unknown reasons ---> They'll die (again) if they either refuse to fight or die during the battle ---> They discover to be copies of their original bodies ---> They are called with a song at the beginning of every mission, etc...
Both are dark, psychological, horror manga full of violence, gore and action, but Red Garden is deeper, more dramatic and female-focused. Also, on the opposite of Gantz, Red Garden has a likable main character, an amazing art style, and a bit of romance (and, despite having less action, is not boring in the slightest bit).
So, if you'd like something with the same story as Gantz, but with no fanservice crap or irritating aliens, the gorgeous but still gruesome Red Garden is a must-read. read more 

reportRecommended by RenaPsychoKiller

Hai to Gensou no Grimgar addpermalink

Although Hai to Gensou no Grimgal is fantasy and Gantz is sci-fi, both have a similar atmosphere and character setup. Both begin with a group of people who is transported to some place and have to kill monsters and aliens in order to survive. Both protagonist are a normal and afraid kid who just go with the flow, always relying on more charismatic characters, but eventually they will have to become the one to protect others instead of being protected. Both have very graphic and excellent artworks. 

reportRecommended by BlindNoldor

Darwin's Game addpermalink

Both involve people who are unwittingly drawn into a "game" where they must fight for their lives 

reportRecommended by Zeth44

Arms addpermalink

An assortment of dynamic characters are thrown into a world of violence and massive collateral damage in these two epic series.  GANTZ features crisp, elaborate artwork, but if one does not want to see flying guts in high definition, read Project ARMS instead. 

reportRecommended by Qualtagh

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