Lights Out
One tap changes five lights. Find the pattern that switches the whole board off.
How to play Lights Out
Each tap toggles a light and its neighbours above, below, left and right. Turn every light off to solve the puzzle. Every starting board is made by legal moves from an empty board, so it has a solution. The move count includes undo attempts.
- Tap any light to change it and its neighbours.
- Watch how each move changes the pattern.
- Turn off every light. Undo is available while you play.
Keyboard & mouse controls
Hover moves the cursor, LEFT does what SPACE does
- Arrow keys
- Move or select a square
- Space / Enter
- Play the selected move, or resume
- N / P
- New game / pause
- H / Tab
- Help and settings / choose a game
- U
- Undo (where available)
Click the board before using keyboard controls. On a phone, you can also use the buttons beneath it.
Common questions
Is Lights Out free?
Yes. Play in your browser without an account or a download.
Can I pause and come back?
Press P to pause. Your current game is kept in this browser tab’s session; your best score is stored on this device. Clearing browser data removes saved progress.
Where is this game from?
The game engine and board drawings come from Nickelbar by Cob Muddybug, adapted to run in a browser. MIT licence and credit.