Recently I toyed around with the idea of introducing Star Control-related races and ships into my game. This was mainly a way to try and reduce the grim darkness in between grim dark encounters. Sort of an encounter that might leave everyone else scratching their heads and wondering "What the hell?!", With the exception of the Kzer-Za and Korh-Ah, most of these encounters can simply be dialogue-based rather than erupting into a shooting war, and most of the races have comical interactions and backstory. Obviously, these encounters are more fun if your players have never played Star Control or its open source clone The Ur-Quan Masters.
Alternately this can serve as the starting point for an extended campaign involving a great exterminatus of all the involved races, or the Rogue Trader emerging as the fulcrum which tips the balance of the conflict in one direction or another. In general, the Rogue Trader and his ship are an anomaly to most everyone they'll meet (with the exception of the Melnorme, who KNOW EVERYTHING), with a highly powerful ship that the Ur-Quan will consider precursor, enraging them. However there are hundreds of them, and one of you.
Warp Travel: The Rogue Trader can jump across the entire sector in a single day. Other ships navigate the Warp similar to the Tau, without the use of Navigators and more reliant on small system-to-system jumps. The entire Korh-Ah Death March should take approximately 6 months to scour the entire subsector from one end to the next. On the other hand, their ships are never lost to warp storms or other nasty things.
Anyways: Some of these ships might have bizarre, overpowered/underpowered stats. This is intentional. I don't make space/power calculations for these ships, as they're not designed to be flown by PC's under any circumstances. Except maybe the Earthling Cruiser or Androsynth Raider.
Crew Population: These ships are highly automated and their ships should be considered undermanned in comparison with a normal Imperial ship, but their crew are better armed, armored, and trained.
Background: In a spiral star cluster deep in the uncharted Cineris Maleficum lies an area of space occupied by multiple alien races with small spheres of influence. The area surrounding the star cluster is a trail of death and destruction against the spin of the cluster, and a trail of worlds encased in impenetrable red energy shields following the spin of the cluster. Where the two trails meet, a large conflict is currently underway between two sides, and one genocidal force.
Alliance of Free Stars
Ur-Quan Kzer-Za Hierarchy of Battle Thralls
Korh-Ah Path of Now and Forever