A very cool game and the best part, it’s free.
Here’s all you need to know from their own facebook page:
“TapDefense is a new iPhone game in the genre of ‘Tower Defense’. The game includes 7 towers types, 8 unique enemies, 42 levels, and 3 difficulty modes.
At as Tap Defender, your task is to construct towers within the building area which will destroy the evil brood before their reach their celestial objective.
Get TapDefense for your iPhone or iPod touch for FREE by clicking HERE: