It took a little longer than first announced but today Hidden Path Entertainment has announced that their strategy-defense title Defense Grid: The Awakening is now available for purchase and download via Steam and Direct2Drive. The game costs $19.99 to download.

As we have reported on before the sci-fi themed game gives players command of bases they must defend from a variety of aliens who are attacking your location. The full game features 20 levels, 15 different kinds of enemies and 10 different types of tower defenses, each with three upgrades. For more info on the game, check out our recent interview with Hidden Path.CEO Jeff Pobst.