Turn every light off • 100 levels • ✅ Mom & Dad Approved • 📱 Touch Ready
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Toggle connected lights and solve each logic board in fewer moves.
Levels are earned, not chosen. Clear your level to unlock the next one.
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Lights Logic Lab is a switch puzzle: tapping a light toggles it and its neighbours, and you want every light off in as few moves as possible. It looks random at first, but it follows simple rules.
Who it suits: Ages 6 and up. A favourite with players who enjoy logic and maths puzzles.
Want to go deeper? Read our guide: A beginner's method for logic puzzles.
Tap cards, tiles or answers directly. You can also use Arrow Keys, W/A/S/D, Space, Enter or the dedicated mobile controls below the game.
A full 100-level campaign that gets harder every single level. You cannot skip ahead or pick a level — clear the one you are on to unlock the next, and your progress is saved on this device. Every level cleared awards a bigger completion bonus.
Prefer an app icon? There is an Android version of this game — the download button sits with the sound controls, below the game.
Scores are kept for every game. Your personal best is saved on this device and your highest run is posted to the Nerdania Hall of Fame leaderboard for this game.