The objective of the game is to switch off all the lights. When a light is clicked, the state (on or off) is toggled along with the adjacent horizontal and vertical lights.
This LightsOut game has altogether 99 puzzles. There is a solution provider which shows the solution for the provided puzzles. It will show the solution even after any of the puzzles is altered by clicking in the play mode or edit mode. The editing mode will enable enthusiasts to edit any puzzle and check if there is any solution. I think this will help maths enthusiasts. The unique feature of this program is that it solves puzzles in minimum number of moves, which I think is not available in the net for this types of offline versions. The background music comprises of an soothing melody of santoor.
This trial or limited version has only 10 puzzles to play.