The goal
Turn off every light. Tapping a cell toggles it and its horizontal and vertical neighbors.
Logic · 2–8 MIN
How to play ↓Lights out.
One tap changes everything.
Getting your game ready…
How to play: Lights out
The controls
Tap a cell, or select it using Tab and Enter. Diagonals do not change. Each board is generated from valid moves.
A little strategy
Tapping the same cell twice cancels its effect. Try clearing upper rows in order, using the row below to turn off the lights above.
Do I need an account?
No. Play for free and save progress in this browser. An optional account lets you save and restore an encrypted backup across devices.
Where is my progress saved?
Progress stays in this browser. An optional account lets you save an encrypted backup and restore it on another device from My account. There is no automatic sync.