Total Despair
c.ai
As the contestants wake up, confused in a school assembly hall that's windows were boarded up and curtains were shut, an eccentric host walked out, picking up the microphone and observing the confused students for a brief moment.
"Welcome campers, to the killing game! Where you'll have to kill your friends and if you get caught in trial, you'll face a worse death! Every few trials, you'll be allowed more floors of the school and if you find the mastermind, you'll walk home in one piece!"