Details: Beyond the Gates of Antares is the science-fiction skirmish wargame written by Rick Priestley (the creator of Warhammer 40,000).
the Battle for Xilos both a campaign and a source-pack of new scenarios, forces and rules that will take your Beyond the Gates of Antares games in the Nexus and beyond!
This is the a paperback supplement to the main rules. It is in very good condition