Suicide victims in hell/purgatory play survival/death gamble games. Centered around a mom with an asshole NEET son who kills herself then gets another chance at life as her younger self.
Bully revenge survival. College students are trapped in a storage container by someone they used to bully in high school and who won't release them until they can figure out who it is.
Death game survival with a terrifying sensory deprivation twist.
Teacher/student and bully revenge survival. A class tragedy causes the popular kids of the class to revolt against the teacher while a bullied student of that class pulls strings in the background for their own personal revenge plot...but are they really running the show, though?
The prequel and my fave of the series. Supernatural death game survival where a small village on the outskirts of town is the first to play the King's Game. Set in the late 70s. Each day the village gets a letter with commands to follow or else people die. NO ONE is safe. Violent demon contagion game survival.
The player who gets their victim to spill the beans (through any means necessary) first wins.
Literally jailbait. Lolis try to survive in a prison of pedos.
School bully revenge story.
The Door of Desire