Horror

ff!

Oh but Online The Comic and Tomodachi Game is heck good o(≧∇≦o) But they're not really horror sadly,,,

http://www.mangago.me/read-manga/apocalypse_no_toride/
http://www.mangago.me/read-manga/ajin/
http://www.mangago.me/read-manga/bougyaku_no_kokekko/
http://www.mangago.me/read-manga/real_account_ii/
http://www.mangago.me/read-manga/funouhan/
http://www.mangago.me/read-manga/dorei_yuugi/
http://www.mangago.me/read-manga/happy_sugar_life/ (cute yuri uwu )
http://www.mangago.me/read-manga/kami_sama_ki_sama_o_koroshitai/
http://www.mangago.me/read-manga/jinrou_game_beast_side/
http://www.mangago.me/read-manga/jinmen/
http://www.mangago.me/read-manga/ou_sama_game_kigen/
http://www.mangago.me/read-manga/jinrou_game/ (Read first before Beast Side!)
http://www.mangago.me/read-manga/ousama_game_renda_hitori/ (I think you read this first before Kigen)
http://www.mangago.me/read-manga/hone_ga_kusaru_made/
http://www.mangago.me/read-manga/the_quiz/
http://www.mangago.me/read-manga/kyou_mei_machi/
http://www.mangago.me/read-manga/children_miura_miu/ (very short, but it's super good so give it a read when you're bored or something!)
http://www.mangago.me/read-manga/kigurumi/
http://www.mangago.me/read-manga/hell_baby/
http://www.mangago.me/read-manga/saiteihen_no_otoko/
http://www.mangago.me/read-manga/nemuri_no_fuchi/ (To me it was a lil boring, but to each there own, ya know?)
http://www.mangago.me/read-manga/ou_sama_game_shuukyoku/
http://www.mangago.me/read-manga/reset_game/ (The chapters to me are quite confusing, and it's slow to update but the beginning is good!)
http://www.mangago.me/read-manga/fukushuu_kyoushitsu/
http://www.mangago.me/read-manga/doubt_tonogai_yoshiki/ (ending is a bit confusing)
http://www.mangago.me/read-manga/jagaaaaaan/
http://www.mangago.me/read-manga/mushihime/

Things I Haven't Read Yet, But Seem Hecking Interesting!
---
http://www.mangago.me/read-manga/kyoushitsu_jibaku_club/
http://www.mangago.me/read-manga/warui_yume_no_sono_saki/
http://www.mangago.me/read-manga/angel_of_slaughter/
http://www.mangago.me/read-manga/hiki/
http://www.mangago.me/read-manga/torture_tournament/

Hopefully you haven't read all of these!

I dunno if MarketPlace mentioned these two because jesus that's alot; but "Oyasumi PunPun" & "Starving Anonymous" are good :)

the author Junji Ito has some really good horror mangas

Thank you so much for the list, I will be reading from this frequently. Already read a few stories, the first one u put down was so good!