iTunes link - expired. Android is still free.

Get ready for a massive 3D tower defense game designed to give you hours and hours of the best strategy gaming available. Craft your perfect defense from a combination of awesome monkey towers, upgrades, Heroes, and activated abilities, then pop every last Bloon that comes your way!

BRILLIANT 3D BLOONS TD

* Vibrant new monkey animations and upgrade skins

* Intense visual effects

* 42 original maps, some with 3D objects that can block line of sight