Delta Green: Agent's Handbook

You’re the one they call when unnatural horrors seep into the world. You fight to keep cosmic evil from claiming human lives and sanity. You conspire to cover it all up so no one else must see what you’ve seen—or learn the terrible truths you’ve discovered. You're Delta Green. The Agent's Handbook includes rules for creating agents, investigations, combat, hazards, Sanity, home, equipment, and federal agencies.