Prism Sorter — Color Sorting Puzzle

HOW TO PLAY

1. Press Start — or the spacebar — to begin a 60-second sorting shift.
2. A rule card at the top shows the active axis: Color, Shape, or Dots.
3. Tap the lane (1, 2, or 3) whose badge matches the incoming prism on that axis.
4. The sort axis flips more often as your score climbs — read the card every time. Three wrong sends end the run.

TIPS & STRATEGY

• Only the active axis matters — when the rule says Dots, ignore the prism's color and shape entirely.
• Re-read the rule card after every clear: it flips faster as your score climbs (about every 6 sorts, then 4, then 3).
• On desktop, keys 1 / 2 / 3 sort faster than tapping and keep your eyes on the prism.
• A wrong send costs a life, not time — slow down for a beat right after a rule flip to keep all three lives.

ABOUT

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.

FAQ

How do you play Prism Sorter?

Read the active axis on the rule card (Color, Shape, or Dots) and tap the lane whose badge matches the incoming prism on that axis. Sort as many prisms as you can in 60 seconds.

Why is it harder than a normal color-matching game?

Each prism has a color, a shape, and a number of dots at the same time, but only the active axis decides the correct lane — and that axis keeps switching, so you have to re-read the rule constantly instead of matching on instinct.

How does a run end?

A run ends when the 60-second timer reaches zero or you make three wrong sends, whichever comes first.

How is my score calculated?

Your score is the number of prisms you send to the correct lane during the run. Your best score is saved on your device and top runs can be submitted to the global leaderboard.

Is Prism Sorter free to play?

Yes. Prism Sorter is completely free, runs in your browser, and needs no install or sign-up.