PRISM STACK
PRISM STACK is a falling-block puzzle where you stack seven kinds of blocks and fill rows to clear them. Aim for four-row PRISM BREAK clears and T-SPINs in solo or CPU mode.
Rules
Seven block shapes fall onto the board. Fill an entire row to clear it. Clear four rows together for a PRISM BREAK. You can also rotate a T block into a tight space for a T-SPIN, hold a block and see the next five.
Controls and CPU mode
Use left/right to move, up or X to rotate clockwise, Z counterclockwise, down to fall faster and Space to drop. C or Shift holds; P pauses and resumes. Phones use on-screen buttons. CPU mode has three stages with garbage attacks.
FAQ
Is it free?
Yes. You can play for free without signing up.
Can I play on a phone?
Play in a PC or phone browser. Use portrait orientation on phones.
Is online multiplayer available?
Solo and CPU modes are available. Online multiplayer is coming soon.
Is progress saved?
Your Endless personal best is saved in the ranking. Runs under 10 seconds are not recorded. CPU stage progress is saved in this browser.