"Star Wars: Empire at War" is a real-time strategy game set in the Star Wars universe. Players can control either the Galactic Empire or the Rebel Alliance, engaging in tactical battles across space and on various planets. The game features a mix of ground and space combat, allowing players to build armies, manage resources, and capture territories. The game includes a campaign mode with a storyline that follows the events of the Star Wars saga, as well as a skirmish mode for quick battles. Players can utilize iconic units and vehicles, such as X-Wings, TIE Fighters, and AT-ATs, to achieve victory.