This is not really a tower defense game but it has a lot of similarities. You control a completely upgradeable tower and have to bounce back the bullets to destroy the tanks. Great idea, right?!

Asteroids tower defence. Build your probes to defend the base from asteroids. Original game with nice towers and upgrades. And also a small funny story attached.

Seven heroes of four classes (demon incarnate, kitsune, king and shield-maiden) await your command in 40 battles. Slay monsters from the deepest pits of Hells to the fields of Heavens, using over 4...

A crappy looking but strategically good working defense game in the style of DesktopTD, the interface can be a bit hard to figure out at first.

Beautiful vectors that give this game a cool neon-look. 11 towers to play with too and as usual loads of upgrades. The maps vary from easy to extremely difficult.

Build your towers out of different elements, allows you to completely customize those towers, just like it's little brother: WhenHellFreezesOver. This game is better balanced and has a very nice map.