Goal: stack the falling blocks, complete full rows to clear them, survive as long as you can, score high.

Keyboard: ◀ ▶ move · ▲ / X rotate CW · Z rotate CCW · ▼ soft drop · Space hard drop · C/Shift hold · P pause.

Touch: use the on-screen pad, or swipe to move, swipe up to hard-drop, tap to rotate.

Scoring: 1/2/3/4 lines = 100/300/500/800 × level. Back-to-back Tetrises and combos pay more. Hard drop earns bonus.

Every score joins the world leaderboard. Soon: connect a wallet, insert a tiny stake, and compete for that currency's prize pool — the game stays identical for everyone. Skill only.