is a single player puzzle game. It was developed by RainOnTheMoon and was released on November 18, 2022.

- Game in development - - Description - Following the disappearance of their beloved dog during a game of fetch and led by the sound of it’s barks, the protagonist crawls beneath the raised roots of a looming tree, falling into the trap of a strange and bizarre world, entombed below. Keys to the Heart is a puzzle/dungeon crawler where the player follows the voice of their lost dog after falling…