From the back of the book:
Science fiction the way you love it!
Reign of Discordia is the core setting book in line of the same name by the celebrated game designer Darrin Drader and Reality Deviant Publications. RoD gives you what you need to know about the galactic civilization following the fall of the Stellar Imperium. Future sourcebooks and adventures will further add to the dynamic space opera setting presented in this core setting book.
Within the pages of Reign of Discordia, you can fight against the R’Tillek and their crusade of extermination against the known species, fight to protect the independence of dozens of worlds, participate in the cold war between Earth and Lamog, haul cargo to the Frontier Systems, involve yourself in the various crime syndicates, work for one of the interplanetary conglomerates and engage in corporate sabotage, play a role in the advancement of one of the interplanetary organizations, salvage starships, and engage in a number of other activities that will bring danger and adventure! Also included is a full length adventure: Virus!