After spending hours playing Primrose, I decided to code a little board game using GGI during a week-end. I don’t remember how but I ended on the Lights Out wikipedia page.
The gameplay is quite simple. You have a 5×5 board with tiles randomly switched on. Well not really randomly because it’s frustrating to have an unsolvable board ;). Your goal is to switch all the tiles off by pressing them. The problem is that when you press a tile, the four adjacent tiles are toggled on or off (see it as an xor).
And voila! It’s a very basic implementation. It features simple graphics, no text nor title screen…