Rowbreak

Touch: drag sideways to move · drag down to soft drop · flick down to hard drop · flick up to hold · tap to rotate (tap the left third to rotate the other way).

Game controller: D-pad ← → move · ↓ soft drop · ↑ hard drop · A rotate · B rotate back · L / R / Y hold · Menu pause. On the menu, A starts or continues a game.

Keyboard: ← → move · ↓ soft drop · Space hard drop · ↑ / X rotate · Z rotate back · C / Shift hold · P / Esc pause.

Solo: your game saves itself after every piece and when you pause or switch apps. Tap Continue on the menu to pick up where you left off.

Versus: both players get the same pieces. Clearing 2+ lines, T-spins, combos and back-to-backs send garbage rows to your opponent. Clearing lines while garbage is incoming cancels it. Up to 4 can play in one room: each attack goes to the next player still in, in turn. Last one standing wins; anyone knocked out watches until then.

Privacy: no accounts, and your name is never collected. Scores, settings and your saved solo game stay on this device, unless you turn on sync under Play on another device: then your saved game, best score and settings (not your name) are stored on our server under a code only your devices know. In versus mode your name and board are sent to the other players in the room, through the host's device; the free PeerJS service is used only to introduce the devices. In the iPhone and iPad app, if you're signed in to Game Center, your scores and achievements go to Game Center, and Game Center matches carry your Game Center name and board to the other players through Apple. On the website, to fix bugs and see what gets played, the game sends crash reports and anonymous gameplay counts (like "a solo game ended with 12 lines") tagged with a random device ID, never your name or room code.