Command an orbital planetary tower defence platform. Build, upgrade and shoot down the incoming waves of Alien Invaders.
Each Invader has a different behaviour and your weapons all have different abilities. Choose the right combination of weapons to defeat each mission and wave of Alien Invaders.

Features of Space Tower Defender:-

* Many types of Alien Invaders including Reapers, Gatherers, Banshees and Brains to name but a few.
* Weapons include Pulse lasers, Photon bolts, Cobalt Beams and Rockets.