If you liked
Murasakiiro no Qualia
|
...then you might like
Kamisu Reina Series
|
both had basic idea of form theory, some part in each other, such as how perspective may shape matters. Both of them had long bout philosophical theory of how everything occurs. Interesting stuff to say.
If you liked
Apocalypse no Toride
|
...then you might like
Gakkougurashi!
|
For Fort of Apocalypse, it's zombie with madness, coming from reform school aka jail packing with zombie full of boys. For Gakkougurashi! it's real school packing with zombie, but had more slice of life and some heartwarming event full of girls. Both had their own type of Story, though basically it is boys/girls meet zombie.
If you liked
Kieli: Shisha-tachi wa Kouya ni Nemuru
|
...then you might like
Asamiya-san no Imouto
|
Plot from them is equally interesting, though in Kieli, there is a bit romance underlying in it, and different purpose for the goal.
If you liked
Becchin to Mandara
|
...then you might like
Gakkougurashi!
|
had the same problem, though Gakkougurashi! had lot more plot, art, and more enjoyable for long ride, as it is still ongoing while i am made this recommendation.
If you liked
Ryushika Ryushika
|
...then you might like
Shirogane no Nina
|
both of them featuring the MC as the little eccentric little girl, with their own unique perspective of world, in the amusing way to display.
If you liked
Kino no Tabi: The Beautiful World
|
...then you might like
Mushishi
|
Both of them offer an exquisite type of world, and how they interact inside it, with unexpected result of choices for both of them. For Kino is travel, Ginko is mushi.