Sins of a Solar Empire: Rebellion marks the final stage in the evolution of the award-winning 4X real-time strategy game. Take the battle for galactic supremacy to its ultimate level in Sins of a Solar Empire: Rebellion - a game that combines the tactics of real-time strategy with the depth of the 4X genre (eXplore, eXpand, eXploit, eXterminate).In-Box extras: 60 minutes of original music on CD, fully illustrated manual, double sided poster and hotkey card