Instructions: Build vertical or horizontal combinations of at least three gems of the same color.
I made a match three game mostly because I do like to play them. The only thing I dislike about most of them is time pressure. So I made the 'skilled mode' where there is a limited quantity of energy. Limited I say? Yes. But by clever combining the gems (more than three of the same color in a row or column) energy is replenished.
When I thought about publishing I also inserted a timed mode. But, with same regaining mechanism.
About the graphics. Yes, there is no single graphical asset embedded in this game. It's purely done by code.
Well, have fun!