Prism Sorter is a rule-switching classification puzzle. Each prism carries a color, a shape, and a number of dots, but only the active axis on the rule card decides where it belongs — and that axis keeps flipping. The challenge is re-reading the rule fast and routing each prism to the right lane before the timer runs out. Your best score is saved on your device, and top runs can be submitted to the global TOP 20 leaderboard.