Cool! I'm kinda behind on voting, but I think this is the best game I've played so far in the jam. Art's nice, there's even a short earth-to-space animation (with an option to skip). Good music and the upgrading system is well done. It took a tiny bit of effort to figure out some parts, but it was easy enough to understand reading the instructions and clicking around. Can't think of any critique. It was just a fun, relaxing game.