Sins of a Solar Empire is a particularly unique RTS because it blended the real-time strategy genre with the 4X genre, the latter of which is defined by their four core verbs: eXplore, eXpand, eXploit, and eXterminate. These games focus on starting as a small civilization before rapidly expanding by using the resources of the environment while crushing out all opposition.
Sins of a Solar Empire explored the potential for how to make this "exterminate" portion of 4X games even more enticing by introducing RTS elements to create something that was unlike anything released at the time. Sins of a Solar Empire approaches scale in a way that few games dared to tread, making an HD remake all the more necessary thanks to the affordances of current games technology. An HD remake can make Sins of a Solar Empire even more expansive than it was at its release, which is a feat in and of itself.