Fun roguelite. Different playstyles with the different unlockable characters adds extra interest.

Excellent addictive factory/automation game which is very chill to play, and graphically very pretty.

Great deck building game with plenty of variation between all the characters. Still my favourite deck builder after all these years.

Really good puzzle game. Like minesweeper, except that you can work out every move. No random guesses needed on any of the levels.

The most accessible Zachtronics game yet. Relatively straightforward to get a solution that works, at least on the first couple of chapters; much much harder to produce an optimal solution for minimum cycles, space or cost, which are the 3 benchmarks used in the histograms at the end of each level.

Best game ever, and for free! You may have to pay to collect hats though :)