Danganronpa 3: The End of Kibougamine Gakuen - Mirai-hen

To Kill or Be Killed Both shows employ the concept of "Battle Royal", where contestants will fight or kill each other until only one survivor remains. The only difference is Mirai Nikki has a vast location while Danganronpa is only limited to a specific place. 

Sequels of their respective titles. MC are survivors of their previous killing games. Once again are forced to participate in another killing game with restrictions imposed upon it's participants and are punished if failed to act upon predetermined conditions.  

Both series have a group of characters who are dying one by one with seemingly no way to stop it except possibly by killing off one member of the group, who's identity is unknown. Both series focus on finding out how this situation came to be and how to stop it, all the while the bodies keep piling up. In Danganronpa 3 Mirai-hen all deaths are caused by humans, while in Another there is a supernatural reason for these deaths and they are 'accidents'. 

both shows shown some similarities including that they are from the same studio they are also about a survival game with a black and white creature that is virtual (because monokuma didn't actually show of physiclly) an item they must have in order to survive (candies and NG Code Bracelet). 

They both deal with the issue of morals. And they both will make you question/debate yourself a lot. 

In both anime, everyone must fight to survive. The characters are somewhat similar too.. Naegi and Hibiki, Munakata and Yamato, Ruruka-Izayoi and Airi-Jungo, etc. So, if you enjoyed Danganronpa 3 Mirai-hen, you might like Devil Survivor 2. 

Genre wise, they are highly different. As much as Katekyo Hitman Reborn is a long shounen battle type with comedy and Danganronpa 3: Mirai-hen is a murder mystery action tragery, they are both set in almost the same setting/situation in their final season. Ironically, Danganronpa has silently referenced Katekyo Hitman Reborn characters which has been a subject to some fanfiction especially with the main characters looking identical and both being pointed out as the embodiment of hope also having both heroine's the same first name. 

A group of people have to play a survival game inside a building. The condition of the players are somewhat similar. If they didn't finish the game within the given time / if they break the rules, they will be poisoned to death. If you liked Danganronpa 3 Mirai-hen, you might like Juuni Taisen as well.