Months ago now1, I started playing Gentoo Rescue (after seeing the Aliensrock video). At the core, it’s a Sokoban style puzzle game where you have to guide cute little sliding penguins to their color coded nests… but oh man does it start getting more complicated quickly.
On top of that, it has a really interesting nesting level concept–the level select screens are levels themselves. You can go several ’levels’ deep into levels or eventually further back out. And that’s just with how far I’ve gotten so far…

