Take back control of the tower prison as the Betrayed Warden and defeat the monsters that have plagued humanity by placing them back in their cells! In Incarcerum, the player uses the images of their past and present selves in order to defeat monsters and arise victorious. As a player enters the arena to fight a boss, their actions and attacks are recorded until the monster they've encountered defeats them. When a player dies and re-enters the arena, those actions become allies and the player can now fight alongside each of their past actions in order to overcome the monster in front of them.