Zeno Clash developer ACE Team has announced a release date for their upcoming downloadable game Rock of Ages. The tower defense game is set to arrive on the PS3, Xbox 360, and PC in August.

Publisher Atlus told Joystiq that Rock will arrive on the week of August 31st. The price hasn't been finalized yet. Atlus expects it to be between 10 to 15 bucks, though.

In Rock of Ages, the player attempts to destroy his enemy's castle by rolling a giant boulder at it. Their opponent is trying to do the same so they'll need to construct obstacles to protect their castle against the boulder. The game features both a story mode and two-player online action.

It's probably best to just show you some gameplay footage. The debut trailer for the game is below.