Stac is a puzzle game reminiscent of Dr. Mario or Super Puzzle Fighter. It is very simple. Four of the same shape touching = points and lowers the stac. Shapes fall in combination of threes. High Scores are saved locally. “Requires ingenuity and persistence in solving and assembling,” according to the Stac site. Any Tetris fan will love this game.

The best part is that I can take a short break from working and play a quick game. If I enable zoom in the System Preferences, I can even play Stac full screen by zooming in on the widget with Cmd+Option++.

Download Stac from the Official site.