A group of friends staying overnight in a castle - but one of you is a killer.

Kojou is a multiplayer game for 3-8 players. Each round consists of a day and a night phase. During the day, the players try to find out who the killer is and report them to the police. Additionally, they try to solve quests to make the castle a less hostile place. The killer can set up traps and destroy the other players' efforts. When the night falls, all that's left to do is to hide and run... while the killer hunts down their friends one by one.

• Solve quests and repair the castle before the night falls to improve your chance of survival
  
• Loot items and gear up for the worst case
  
• Vote for the killer before they can set their plan into motion
  
• Watch out for deadly traps in the night
  
• Call for help and hide while one of your former friends hunts you down