Castlestorm gets this gameplay demo video for E3 2012. The castle vs castle RTS has its roots in tower defense games, but also has an Angry Birds element to it. Players fire arrows, ballistas, and other projectiles at enemy castles, and deploy troops to take down opposing armies in this lighthearted knights vs vikings war story.
But that's not all for Castlestorm. Although deployed troops engage in combat independently, players can summon a special hero, called Sir Garreth, which they can control.
Castlestorm has co-op and multiplayer modes, too. The game will release on Xbox Live Arcade later this 2012 year.