Play Lights Out online
Lights Out is a turn-based logic puzzle. Selecting a light toggles that cell and its immediate up, down, left and right neighbors. Every generated board has a solution. The goal is to turn every light off.
Play Lights Out →No download or account is required. Gameplay needs JavaScript; these instructions remain readable without it.
How to play Lights Out
- Tap or click a light to toggle its neighborhood.
- Use arrow keys to move between cells and Enter or Space to select.
- Show hint outlines a valid next move; requesting the same unchanged hint is not charged twice.
- Undo reverses the previous board change, and counts as another move.
Lights Out tips for your next round
- A press changes a cross of cells. Watch the neighbors as well as the cell you select.
- For a systematic approach, use the row below to turn off lights in the row above; the last row may require trying a different first row.
- Use Show hint when stuck. Asking again on the unchanged board does not charge another hint.
Are Lights Out boards solvable?
Yes. Boards are generated by applying valid moves to a solved board. A solution exists; the hint feature can help you find the next move.
Five level goals
| Level | Goal | XP for a clear |
|---|---|---|
| 1 | Turn off a 3 × 3 board | 75 XP |
| 2 | Turn off a 3 × 3 board | 100 XP |
| 3 | Turn off a 4 × 4 board | 125 XP |
| 4 | Turn off a 4 × 4 board | 150 XP |
| 5 | Turn off a 5 × 5 board | 175 XP |
Scoring and saved progress
The final score is at least 100: start with 800 plus 200 times the level, then subtract 15 per move and 60 per hint.
Clear a level to unlock the next. Your XP, achievements and personal records save in this browser when storage is available. Scores do not sync between devices or different website addresses.
Controls and accessibility
Click or tap a cell. Arrow keys move focus; Enter or Space toggles. Use Hint if you get stuck; undo is always available.
Lights use symbols, pressed states and accessible on/off labels. There is no time limit, and hints remain available throughout the puzzle.
Display settings provide higher contrast, larger text and reduced optional motion. Keyboard focus indicators remain visible. These features are not a claim of complete accessibility for every game.