Labeled as a micro-expansion (that you could get for $10) it brought new defensive options, including formidable starbases and mine fields, among other things. In late 2008 the same team released Sins’ first expansion called Entrenchment.
Sins of a Solar Empire: Rebellion is the third expansion to the well known Stardock and Ironclad RTS/4X space game Sins of a Solar Empire, that was released in early 2008.
