Sqdef is a tower defense game. The goal is to prevent enemies from getting from one side of the map to the other, by placing towers along their way. There are 9 different buildings, with upgrades, tech research, difficulty levels, and a whole lot of maps to try your defense skills on!
Changes:
Sqdef 1.1C is out. It runs faster in the later, busy levels, and fixes a number of things. Same download link.