Rethm: Once Upon a Time

Rethm: Once Upon a Time is a rhythm game RPG in which you travel through time in reverse. You play as Astelro, a hero who defeated the Monster King and then kills the human king, Ankh. Using Ex, a device only the king possesses, Astelro reverses the flow of time as he tries to recover what he could not bear to lose. You uncover the story of the separation between humans and monsters by looking back on Astelro’s regrets and past actions.

A world in reverse

The story unfolds like a video played backward: rain rises from the ground, defeated enemies return to life, and meetings become separations. As time reverses, the story moves toward its beginning.

Reverse rhythm gameplay

The rhythm game can be reversed in real time. If you make a mistake, you can roll back immediately and restart from that point.