Lights Out — Free Online Puzzle Game
A free Lights Out puzzle game with 20 hand-crafted levels and a random mode for infinite play. Click any light to toggle it and its four neighbors, then figure out how to turn every light off. Features move tracking, best score saving, and smooth animations.
Toggle switches and solve 20 grid-based logic challenges
Features
How to Play
- Understand the grid. You see a 5x5 grid of lights. Some are on (glowing) and some are off. Your goal is to turn every light off.
- Toggle lights. Click or tap any light to flip it and its four adjacent neighbors (up, down, left, right).
- Plan your moves. Think ahead — each click affects up to 5 lights at once. The fewest moves wins the best score.
- Clear all levels. Complete 20 levels of increasing difficulty, then try Random mode for infinite procedurally generated puzzles.
Frequently Asked Questions
What is the Lights Out puzzle?
Lights Out is a classic electronic puzzle from 1995. You have a grid of lights that can be on or off. Pressing any light toggles it and its orthogonal neighbors. The goal is to switch all lights off.
Is every puzzle solvable?
All 20 built-in levels are guaranteed solvable. Random puzzles are also generated to always have a solution.
How is the best score calculated?
Your best score is the fewest number of moves used to complete a level. It is saved in your browser and persists between sessions.
Does it work on mobile phones?
Yes. The game is fully touch-friendly with large tap targets. It works in both portrait and landscape on any modern mobile browser.
