ADHD Tetris

They're the game's intensity levels. Clean clears and strong chains make the music, background and effects grow from CALM to FLOW, HYPE and OVERDRIVE, so the game reacts to how well you're playing.

Yes. It's free and runs right in your browser on desktop, with no download needed. Open the page and you can start stacking straight away.

A and D move the piece, S soft drops, Space rotates, W hard drops, C holds a piece and Esc pauses the game. That covers everything you need for a run.

Swipe left or right to move, tap to rotate, drag down to soft drop and flick straight down to hard drop. You can also use HOLD to set a piece aside. The game is laid out in portrait orientation.

No, it's an endless score attack. The speed rises as you progress, so the aim is to survive and score as high as you can before the stack reaches the top of the board.

You can plan around the next three pieces, use HOLD, perform T-Spins, keep difficult-clear chains going and chase Perfect Clears. These are the moves that help push the music and effects up to OVERDRIVE.

Yes. Progress and an unfinished run can be restored, so you don't lose your place if you have to step away. Runs also award BITS as you play.

Yes. Your best score can be submitted to the leaderboard, which gives every endless run a point beyond just surviving a bit longer.