Chain Reaction: Catalyst is a casual strategy game about triggering visually and sonically stunning chain reactions. Trigger four unique unstable shapes, each with their own reaction mechanics, strategies, and upgrades! Reactions occur in sync with the music, experience rhythmically orchestrated chaos! Non-linear progression. Play through the game your way, choosing to upgrade whichever shapes that you like best, first! Choose between four difficulty modes with 105 levels to challenge in each! Enjoy the high quality Persona 5 inspired visual style!