Games Like Ghost Croquet

Ghost Croquet is a multiplayer platformer where monsters are controlled by the other players! It's most fun when played with friends as a party game (up to 4 people locally or up to 8 online), but also has competitive singleplayer modes and a level editor integrated with Steam Workshop.

One player is the hero, the others are ghosts able to possess monsters and traps. Whoever kills the hero, becomes the hero, and the cycle continues! You can also collect gems while in human form to spend them on powerful upgrades and items.