Sqdef (GP2x Game)

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! It even has a secret tower!

http://gbax.gp2x.de/gbax2007.html

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