Star Wars: The Shatter
The XR-348 are a non-biological sentient machine species. They were named after a quadrant they were initially thought to have hailed from, but this later proved erroneous. No one knows where they come from; some element analysis of units captured by the Illyaruriae have hinted that they may not even be from this universe. They have not been reported in any system other than Desariun. Since they can survive in hard vacuum as well, they are the most formidable scavenging competitors to the Cedu. They can communicate in Basic and appear to be capable of being reasoned with if encountered, but it seems they can’t be bothered.
We need to work on their motivations – if we can nail those down, and their general view on other species and the system, plugging in future behaviors will be easy