The Shi'an

From publisher blurb:

The Shi'an, an ancient alien race driven from their home world after a horrific war. Now, as galactic nomads they hide amongst the shadows of ancient worlds awaiting the opportunity to reclaim their rightful place of interstellar dominion. This supplement introduces a new alien race for use in Goblinoid Games Starships and Spacemen 2E RPG as an alien adversary, player character race, or random encounter creature. Designed for use with the Galactic Setting introduced in Ashdown: 100 Charted Worlds For S&S 2E, this product expands that alternate universe with an ancient inhabitant. You can use this product as written or as a source for new ideas for your own game setting.