Stackblitz

Stackblitz is a clean, distraction-free block stacking game that runs right in your browser tab or extension popup: no installs, no ads, no fuss. Stack falling blocks, clear lines, and push your high score as far as you can. The game gets faster as you level up, so there's always a new challenge waiting. FEATURES • 5 visual themes — Default, Light, Neon, Retro, Matrix • 3 difficulty levels — Easy, Medium, Hard • Speed progression — every 10 lines cleared increases the pace • Hold piece — swap a block to save it for later • Ghost piece — see exactly where your block will land • High score saved per difficulty level • Line clear bonuses — Double, Triple, Quad • Pause anytime, resume instantly CONTROLS ← → Move ↑ or W Rotate ↓ Soft drop Space Hard drop C Hold piece P Pause / Resume I Show controls ↺ Restart (requires confirmation) Everything runs locally and no data is collected or sent anywhere.