Permadeath

Gameplay in Dead Cells is akin to "RogueVania". It involves intense 2D action with the adrenaline pumping threat of permadeath in a castle full of cuddly creatures.

Each time you die, the castle (and presumably also the vania) reorganizes itself. Each time you die, you start again from the beginning. Also, your perpetually dying—but never actually Dying—avatar doesn’t have a head!