Taken from the publisher's website: A Hunter races past you, its rapid-fire 20mm autocannon spitting metal death. As you watch in horror, your commanding officer's Black Mamba erupts into a ball of raging flame, composite armor and fuel ablaze in a bright fireball. "Fall back! Fall back!" Hastily, you have taken command. Your cadre pulls back behind a rocky outcropping and regroups. Tracers streak by your temporary shelter like angry hornets -- you all know you can't stay here forever. You crouch low and burst out of the rock's shadow, zipping, zooming and ducking on powered wheels like an oversized amored skater. A hail of shells explode on the ground around your Gear, but you sidestep every one of them. Unleashing the full power of your V-engine, you head back into the fire fight, emptying your shoulder-mounted 71mm rocket pod on an enemy heavy tank. And they told you this was just a routine patrol... Step into a whole new universe with Heavy Gear, the next generation of military science fiction game! This book features: A detailed world background along with extensive guidelines for campaigning on Terra Nova that can be used to jumpstart any campaign; Extensive guidelines and tips for adventuring in the human colony worlds of the 62nd century; Dual-stats for the powerful Silhouette CORE rule system, a highly acclaimed game engine that uses classic six-sided dice, and the widely popular d20-based rules placed under the Open Gaming License; And tons of military and civilian archetypes, weapons, equipment and vehicles! Requires the use of the Silhouette CORE rulebook(tm) published by Dream Pod 9, Inc., or a Roleplaying Game Core Book published by Wizards of the Coast(R), Inc. You will also need a few six-sided dice, pen, paper and 2-6 players aged 12 and above. This product is largely compatible with previous Heavy Gear titles.