These are the stories of robots. Killer robots. Their place of origin? SPACE. I know what you are thinking. "This is the most exciting thing I have ever heard of and I cannot wait to learn more about these riveting characters and their compelling adventures."
You are right to think this.
Now, people like to point out that there appears to be, in fact, a rather modest amount of killing going on; that there is actually little indication of the robots currently or really ever having resided in space; and honestly they appear to be, at best, only occasionally robot-like.
These observations are all entirely correct.