Building forts is cool and smashing them is perhaps even better, so CastleStorm is certainly interesting in concept. It'll be storming Xbox Live Arcade next Wednesday, developer Zen Studios--of Pinball FX2 fame--announced today, for you to build and defend the fort of your dreams while destroying other people's.

CastleStorm is like some combination of RTS, tower defense, and Angry Birds. You get to build and defend a fort of your own, while deploying troops and blasting away siege weapons to knock down the enemy's. Along with a single-player campaign, it'll have various co-operative and competitive multiplayer modes.

Hitting May 29, it'll cost 800 Microsoft Points ($10). Here, a peek at some multiplayer action: