About Iron Brigade:

Iron Brigade (formerly titled Trenched) is a video game developed by Double Fine Productions and published by Microsoft Game Studios for exclusive release throught the Xbox LIVE Arcade Marketplace. Iron Brigade combines many of the gameplay elements found in tower defense and third person shooter genres to create a hybrid game. The game occurs in an alternate timeline shortly after World War 1, and follows the Mobile Trench Brigade in its campaigns to reclaim the world from the robotic Monovision menace. The game was released on Xbox Live on June 22, 2011