Puzzle Games

Light Up the Universe

Number of switches0Minimum number of timesNone

Mobile: Tap a light to toggle it and its four adjacent neighbors.

Light Up the Universe game coverLight Up the Universe

Ready? Press Start to play.

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How to play

  1. Tap a light to toggle it and its four adjacent neighbors.
  2. Yellow means on; dark blue means off.
  3. Turn on all 25 lights. Every board is generated from valid moves.

About the game

Each tap switches a light and its neighbors. Work out the sequence to turn all the lights on.

The leaderboard keeps your best valid result for this game. Your best score is also saved on this device.

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