u should try reading: http://www.mangago.me/read-manga/btooom/ (survival/long) and http://www.mangago.me/read-manga/mirai_nikki/ (survival+long)...the anime adaptations are also good(not as good as the manga but still)
okay im not good with this genre :') do u perhaps like psychological manga?or mby shounen ai?(i dont know ur gender and age so its kinda hard :'))
Unordinary
Following so i can read them later (づ￣ ³￣)づ
Battle Royale
HIya, I'm looking for some really long mangas, where its either Fantasy, Survival types and like one where the MC is on an island by themselves, like after a crash and maybe some time travelヾ(❀╹◡╹)ﾉ~
But other suggestions are also helpful because I really love reading.