Lights Out

Play free online — no downloads, no installs.

About Lights Out

Lights Out is a free online logic puzzle about switching off a grid of glowing lights. Every tap flips a light and its four neighbours, so a careless move can light the board right back up. Play free with no download and no sign-up, on phone or desktop.

How to play

Because pressing the same cell twice cancels out, the order of your presses never matters — only which cells you press. A reliable method is "chase the lights": clear the top row, then in each row press the cell directly below any light still on, pushing the lit cells downward until only the bottom row is left to resolve. Aim for the fewest presses to beat your best score.

Frequently asked questions

Is Lights Out free to play?
Yes — Lights Out is completely free to play online in your browser, with no download, no installs and no sign-up.
How do you play Lights Out?
The board starts with a scramble of lights switched on. Tap a cell to flip it and its four orthogonal neighbours (up, down, left, right) between on and off. On a keyboard, move the cursor with the arrow keys and press space to toggle.
Can I play Lights Out on my phone?
Yes — Lights Out works on phones, tablets and computers. It runs in the browser, so there is nothing to install.
Any tips for Lights Out?
Because pressing the same cell twice cancels out, the order of your presses never matters — only which cells you press. A reliable method is "chase the lights": clear the top row, then in each row press the cell directly below any light still on, pushing the lit cells downward until only the bottom row is left to resolve. Aim for the fewest presses to beat your best score.