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. This item is FREE delivery. Suitable for the PC. Updated capital ships: all existing capital ships have been with four new ability levels. New titan and corvette class warships: mighty titans and small versatile corvettes enter the fray. For ages 7 years and over.