Produced by Nothing Ventured Games, this PDF is 18 pages containing nineteen robots across a CR 1-19 spread, from the lowly Observation Bot right on up to the terrifying CR 19 Hellreaver Automaton, forged literally in the bloody fires of hell to destroy all level 17-20 PCs in it's path. I'll be using this book quite a bit, as anyone who has picked up the Alien Archive from Paizo will notice that it is woefully short on meaningful robotic foes. The PDF is clean, follows the Starfinder stat block protocol, and has some nice black/white illustrations that get the job done. I look forward to seeing what the author, Paul Stefko, comes up with next for Starfinder. This appears to be the first Starfinder resource from Nothing Ventured Games, and hopefully they make more thematically utility-driven resources in the near future.
Source review: http://realmsofchirak.blogspot.com/2018/01/starfinder-reviews-robots-of-known.html