Puzzle / 2–8 min

Lantern Grid

Switch off a glowing grid in this original take on the classic cross-toggle puzzle. Explore 24 solvable stages from 3×3 to 5×5, undo freely and return to your saved board without a timer.

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TouchMouseKeyboardGamepad mapping
Lantern Grid — original illustration
Lantern Grid — actual game board
Actual game board · Chromium

How to play

  1. Tap a lantern to flip it and its up, down, left and right neighbours. Diagonals do not change.
  2. Switch every light off to finish. The star and dot distinguish lit and dark cells without relying only on colour.
  3. All 24 stages are generated from a solved board. Undo is available, but moves still count toward your score. There is no countdown.

Make your move

  • Touch or mouse: tap a cell. Undo reverses the last move without refunding the move count.
  • Keyboard: arrows select a cell; Enter or Space plays it. Use Tab to reach Undo and player controls.
  • Standard gamepad: D-pad selects and the primary button plays. Physical devices have not been tested.

A small head start

  • Tapping the same cell twice cancels its effect.
  • A corner changes only three lights. Start by watching how the edges behave.
  • There is no penalty for taking your time. Use Undo to compare two ideas.

Compatibility notes

Touch and keyboard controls are implemented. Physical phones, controllers and Tesla browsers await device testing.

Play style: Point and move. Local progress restoration is available for this game.

Check this game on your device ↗

Compatibility · Input check

Credits & source

Denny Games · MIT. Source code

Updated: 2026-10-22. Free to play. Pages may contain disclosed affiliate links; Google ads are inactive.

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