From the Back Cover Space Cadets(tm) takes your TWERPS(tm) game to the wackiest limits of outer space! Explore alien worlds, seek out weird and ugly life-forms, and blast them! Included are 5 new character classes including Mechanics and Medics, new Sci-fi weapons, defenses, vehicles, equipment, alien monsters, and lots more! The companion volume, Rocket Rangers(tm), provides complete rules for spaceship construction and combat. This is a campaign set for the TWERPS(tm) game system. The TWERPS(tm) Basic Rules are needed for play.