How do you play Lights Out?
Press a tile to flip it and its four direct neighbours. Turn every light off to finish the puzzle.
Cozy web games
Lights Out
Lights Out is a compact logic puzzle on a 5 by 5 board. Each press changes one light and its neighbours, so every move has a knock-on effect.
PCder pick
Lights Out is a stable catalog pick.
This page is one of the games PCder is comfortable recommending first: the controls are clear, the source trail is visible, and the game fits a desktop browser session.
Regional page
Play Lights Out in Canada
This Canada page keeps Lights Out close to the searches Canadian desktop players use. Flip the right tiles and leave the whole board dark. The game stays browser based, with no installer or launcher.
Quick answer
lights out game online
Lights Out is a 5 by 5 logic puzzle. Pressing a tile flips that light and its neighbours above, below, left, and right. Clear the board by turning every light off. Each PCder puzzle starts from a solvable position, and your best score stays in this browser.
- Best for
- Players want a playable Lights Out board, simple rules, and a practical solving method.
- Related searches
- lights out game online, lights out puzzle, browser logic game, 5x5 puzzle
How to play
How to play Lights Out
- Press a light Click any tile to change it and the adjacent tiles in four directions.
- Watch the pattern A move can turn lights on as well as off, so look at the whole cross before clicking.
- Clear each row Use the row below to switch off lit tiles in the row above.
- Finish in the dark The puzzle ends when every tile on the board is off.
Player guide
Lights Out solving notes
A good way to solve Lights Out is to work from the top down. Once you leave a row, avoid touching it again and use the row below to switch off any lights still above.
- Clear the top row by pressing the tiles directly below its lit squares.
- Work downward one row at a time instead of chasing single lights.
- Reset the same puzzle when you want to test a cleaner sequence.
Strategy
Chase the lights down the board
Random clicking can undo a good move two seconds later. A steadier method starts at the top. For every lit tile in the first row, press the tile directly below it. Then repeat the same process for each row.
This pushes the remaining pattern toward the bottom without disturbing rows you have already cleared. If the last row stays lit, reset and try a different set of presses across the first row.
- Treat a row as finished once every light in it is off.
- Pressing the same tile twice cancels the move.
- Use Reset to replay the identical starting board.
Common questions
Lights Out FAQ
Is every Lights Out puzzle solvable?
The PCder version creates boards by applying legal moves to a cleared grid, so each starting position has at least one solution.
What is the easiest Lights Out strategy?
Work from top to bottom. Press the tile below each light that remains on, then keep moving down the board.
Does the order of moves matter?
No. Pressing the same set of tiles produces the same result in any order.
Does Lights Out save my score?
It saves only your lowest move count in local browser storage. No account is needed.
Can I play Lights Out on PCder from Canada?
Yes. The Canada page keeps Lights Out in a desktop browser format with no installer, clear controls, and source notes. A school, office, or managed network may still block access.