Players assume other people's bodies and lives and must pass as them for a day without being found out in order to move on.
Death game survival. A group of randos going room to room and solving traps.
A few brides to be complete for a school shooter's hand in marriage.
The tragic story of a highschool prostitute with no family who gets "adopted" by a granny and finds something in life to live for. Extremely sad with some sweetness. If you haven't read Pao's story, read this one first. Not super violent but has real life horror and survival elements.
Two friends are stuck together for life under unfortunate circumstances. With friends like these...
Death games. Serial killers vying for position to enter a serial killer tournament. The MC gets her prey by setting up death games for school kids.
College misfits start a business granting the dead their final wishes and so forth.
Creepy rich kid's dad is a successful CEO, generous, loving...and a serial killer. It's a long read but very suspenseful.
Class reunion turns into a death game.
Weird death game/apocalypse survival centered around a strange watch participants are forced to wear.
Kuronou Syndrome