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Lumen

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Game settings

Changing the board size starts a new puzzle after confirmation.

Sound settings

Lumen

Your GameFinder account

Your account gives access to supported GameFinder.pro features. This new Lumen edition currently saves a running puzzle on this device; cloud saves and rankings are not activated.

Interactive demo

Watch a small puzzle being solved. Your current puzzle is paused and restored afterwards.

How to play

Make every crystal glow. Tapping a crystal switches it and its direct neighbours above, below, left and right. Diagonals stay unchanged.

A hint marks a recommended crystal with a star. Its outlined neighbours will switch too. Every requested hint counts as a used aid.

Use Tab to enter the board, arrow keys to move and Enter or Space to select a crystal.

The timer starts with your first move and pauses in menus, during the demo and in the background. Aim for fewer moves, then fewer hints and a shorter time.

For entertainment only. No stakes or cash prizes.

Game menu

Game menu

  • New game

    Creates a new solvable puzzle after confirmation.

  • Sound

    Opens the game's sound settings.

    Tap the small i beside a setting to read its explanation.

  • Settings

    Choose 4 × 4 or 5 × 5, timer visibility and reduced motion.

    Tap the small i beside a setting to read its explanation.

  • Information

    Shows information about the game.

  • Leave game

    Returns to the home page after confirmation. Choose Keep playing to stay in the game.

Privacy settings

Start a new puzzle?

Start a new puzzle? The current puzzle will be replaced.

Leave game?

Do you really want to leave the game and return to the home page?

Every crystal shines.