Lyre Costilla Chandonnet's Guide to Risk & Reward

From publisher blurb:

Lyre's Guide to Risk & Reward is a 376-page bestiary built with the 5th edition compatible 5.19th Editon rules. It contains over 200 NPCs, consisting of factions, beasts, deific aspects, and most notably, mecha from the Somnus Domina setting. These creatures can be used in any setting readily, but they all tie into the threats and conflicts of the setting from which they originate, Somnus Domina's continent of Retia! The book contains the following:

Over 200 NPCs
Mechs, called DGRs
Rules for piloting, customizing, and scaling DGRs
A treasury of wondrous and magical items
Artifacts, both traditional and of new types, all with unique mechanics
Hazards including chaotic magic fields, unsafe nourishment, and more