In Delta Green: The Role-Playing Game, the players are those agents. They fight to save human lives and sanity from threats beyond space and time. Delta Green’s percentile-based rules are compatible with 20 years’ worth of Delta Green scenarios and sourcebooks.

Delta Green includes two full-color rulebooks:

The ENnie Award-winning AGENT'S HANDBOOK features rules for creating agents and playing the game.  It includes:

• Rules for creating agents, with dozens of professions from throughout the U.S. government and the civilian world. 
• Rules for tense, fluid investigations; players who use their agents' skills in clever ways have the best chance to succeed—and survive. 
• Nerve-wracking rules for combat, where random disasters can undo the most careful planning and the human psyche is as vulnerable as the body. 
• Mind-melting Sanity rules, which see agents gradually and inevitably deteriorate from too much exposure to trauma—and sometimes snap in an instant from overwhelming terror. 
• Rules for “home” scenes where players can see what their agents are fighting for. 
• Intuitive rules for equipment and assets, which let you determine on the fly whether something is available without having to plan it out ahead of time. 
• Dossiers of the federal agencies most likely to be featured in Delta Green games, focusing on the details players want to know when they play their agents. 

The ENnie Award-winning Handler's Guide is written for the game moderator who presents the mysteries and horrors of the Cthulhu Mythos. It includes:

• A history of the world of Delta Green from prehuman history to the present day, with campaign tips and scenario seeds on every page. 
• Horrifying rituals, unnatural entities, and reality-shattering Great Old Ones. 
• Rules for creating new threats to shock and terrify your agents. 
• The secretive Delta Green organization in deep and disturbing detail—and the other ruthless conspiracy that claims it is the real Delta Green. 
• Guidelines for creating original scenarios and campaigns using the resources in this book. 
• “Operation FULMINATE: The Sentinels of Twilight,” a sample scenario, ready to play.

Delta Green: The Role-Playing Game is supported by 20 years of scenarios and sourcebooks, with more to come.

A universe of cosmic terror lurks, just out of sight. Can your agents stand against it?