Core Rule Book in PocketMod format. Sales blurb: This rules lite game allows you to put on your power suit, grab your pulse rifle and assume the role of space marines at the edge of known space. The Edge of Space Rulebook is designed to allow GMs to easily get an exciting science fiction game up and running in no time. Character generation takes only minutes while still providing players with wide ranging character types to flesh out their space marine squad and get ready to squash bugs in the deep blackness of space.