Classic Tetris with a twist -- compete side by side against a Claude-powered AI opponent in real-time.
Features
Everything you love about Tetris, plus a competitive AI opponent that thinks before it drops.
Compete against a Claude-powered AI that adapts to your skill level
Watch both boards in real-time -- see every move the AI makes
Clear lines to send garbage to your opponent. Last one standing wins
SRS rotation, 7-bag randomizer, hold piece, ghost piece -- full guideline Tetris
How It Works
No sign-up needed. Just click and go.
Use keyboard or touch controls to play classic Tetris.
Clear more lines and send garbage to the AI to win.
The AI opponent uses Claude Haiku to evaluate each move -- it sees the board and thinks about where to place every piece.
Haiku responds in under 500ms per move.
Evaluates every possible placement before choosing.
Falls back to heuristics at high speeds so it never freezes.
No account needed. Click play and challenge the AI right now.
No sign-up. No download. Just Tetris.