About Lights Out
Lights Out is a classic logic puzzle played on a square grid of glowing cells. Every press changes a small cross-shaped area, so the challenge is planning a sequence rather than reacting quickly. Boards grow from 3x3 up to 6x6 as you climb the levels.
How to play
- Tap any cell to toggle it and the four cells touching it.
- Your goal is to turn every light off.
- Use fewer moves to earn up to three stars.
Tips and strategy
- Work row by row from the top: use the row below to switch off any lit cell above it.
- Pressing the same cell twice cancels out, so never repeat a press.
- The grid grows to 4x4 at level 46, 5x5 at level 91 and 6x6 at level 136.
Levels, stars and XP
Finish a level to earn one to three stars and XP towards your player level. Replay any unlocked level to improve your stars. From level 151 the game enters endless mode, where each level is a remix of an earlier one with fresh colours and a slightly higher difficulty.
Frequently asked questions
- How do I play Lights Out?
- Tap any cell to toggle it and the four cells touching it. Your goal is to turn every light off. Use fewer moves to earn up to three stars.
- What is a good strategy for Lights Out?
- Work row by row from the top: use the row below to switch off any lit cell above it.
- How many levels does Lights Out have?
- Lights Out has 150 levels that rise gradually in difficulty. After level 150 the game continues without end: levels are drawn from the first 150 in a newly shuffled order, with new colours, flipped or rotated layouts and a small difficulty boost, so the level number keeps increasing.
- Is it free to play?
- Yes. Lights Out is completely free and runs in your browser on phones, tablets and computers. No download or account is needed.
- Does my progress save?
- Your level, stars and XP are saved in your browser on this device. Clearing your site data will reset them.