Alamo Game Engine is a game engine developed by Petroglyph, which is used to create the real-time strategy games Star Wars: Empire at War, and Star Wars: Empire at War: Forces of Corruption. A modified version of the Alamo Game Engine was used for Petroglyph's third title, Universe at War: Earth Assault.
I love this engine! Even on the highest graphic settings when I play Empire at War, I still get great FPS! If Petroglyph ever does a major update to this engine, I hope Lucas Arts comes out with another Empire at War game to go with it!