About this game
Tetris is the timeless puzzle classic where falling blocks — the famous tetrominoes — drop into a well one at a time. Slide and rotate each piece to weave them together, and complete a full horizontal line to make it vanish and earn points. The pieces fall faster as you level up, so quick thinking and tidy stacking are everything. Clear four lines at once for a Tetris and a huge score bonus. Easy to pick up yet endlessly addictive, it is the perfect game to chase one more high score.
How to play
- Pieces fall from the top into the 10-by-20 well — guide each one as it drops.
- Move pieces left and right with the arrow keys, WASD, or by swiping.
- Rotate a piece to fit it snugly against the stack below.
- Fill an entire horizontal row to clear it and score points.
- Don't let the stack reach the top — clear lines to keep playing!
Controls
- Arrow keys or WASD — move and soft drop
- Up arrow or W — rotate the piece
- Spacebar — hard drop instantly
- Swipe to move, swipe down to drop, tap to rotate
Tips & tricks
- Keep your stack low and flat to give yourself room to react.
- Save a one-wide column on the side and clear four lines with the I-piece for a Tetris.
- Use the ghost outline to see exactly where a piece will land.
- Rotate against the walls — a kick can squeeze a piece into a tight gap.
Frequently asked questions
Is Tetris free to play?
Yes! Tetris on Jellyzap is completely free and runs right in your browser — no download or sign-up needed.
How do I play Tetris on mobile?
Swipe left or right to move a piece, swipe down to drop it, and tap the screen to rotate. It works on phones, tablets and computers.
How does scoring work in Tetris?
You earn points for every line you clear, and clearing more lines at once is worth far more. A four-line Tetris scores the biggest bonus, and points grow with your level.
Why do the pieces fall faster?
Every ten lines you clear raises your level, and each level makes the pieces drop quicker — so the game gets more challenging the longer you play.