Re:act

Re:act is a rhythm game without a note highway. You steer a crystal ship down a tunnel where everything moves to the music: stones swing round on the beat, ice waits for the drop and the walls pulse with each bar. Every level is written together with its own track, so nothing is random, and listening tells you what's coming.

You crash, rewind and try again until you know a level like a song. The game also keeps changing shape. Some sections take you out of the tunnel onto a line where each beat is a turn, and others swing you round black holes.

The developer posted on r/SoloDevelopment that they can't paint but can code, so the art is made from simple shapes and shaders, and the music is generated in code. Neither uses AI. Re:act is due in December 2026 for Windows and Mac.