Delta Green

Delta Green - Modern Lovecraftian Horror & Conspiracy RPG

Investigate the unnatural and protect humanity from cosmic horrors with Delta Green, the award-winning modern horror RPG. Play as federal agents fighting a secret war against the Cthulhu Mythos, extraterrestrial threats, and unnatural forces that threaten reality itself. Built on a streamlined percentile system, Delta Green delivers tense investigative gameplay where sanity is as precious as ammunition.

Core Rulebooks

Start your operations with the Agent's Handbook, containing complete character creation and player rules, then expand with The Handler's Guide for Game Master resources, threats, and campaign frameworks. For the complete experience, grab the Slipcase Edition with both core books in premium packaging.

Explore Delta Green's Cold War origins with The Fall of DELTA GREEN, a standalone RPG set in the 1960s when the conspiracy operated in the shadows of Vietnam and government paranoia.

Major Campaigns & Sourcebooks

Experience epic multi-session horror with Impossible Landscapes, the definitive King in Yellow campaign spanning decades of reality-bending investigation. Explore organizational secrets with The Conspiracy sourcebook detailing the Program's history, structure, and operations.

Discover classified locations in Black Sites, encounter dangerous allies in Iconoclasts, and investigate government facilities in Control Group.

Operation Collections & Scenarios

Run ready-to-play investigations with acclaimed scenario collections including A Night at the Opera, Extraordinary Renditions, Strange Authorities, and Puppet Shows and Shadow Plays.

Explore standalone operations like Observer Effect, Music From A Darkened Room, The Last Equation, Convergence, and Extremophilia.

God's Teeth Campaign Arc

Follow the interconnected God's Teeth series across multiple operations: God's Eye, God's Breath, God's Hunt, and God's Law. Enhance your sessions with the God's Teeth Evidence Kit featuring physical handouts and props.

Additional Operations & Resources

Expand your operation library with scenarios like Lover in the Ice, PX Poker Night, Viscid, The Complex, The Labyrinth, and Kali Ghati.

Access quick-start rules with Need to Know Quick Start, or explore additional operations in The Way it Went Down and The Way it Went Down Vol. 2.

Why Delta Green?

Modern Lovecraftian Horror: Face cosmic threats in contemporary settings with cell phones, forensics, and federal bureaucracy.

Investigative Gameplay: Piece together clues, interview witnesses, and uncover conspiracies before confronting the unnatural.

Sanity & Consequences: Every operation takes its toll—mental trauma, broken bonds, and moral compromises accumulate over time.

Percentile System: Streamlined d100 mechanics emphasize skills, investigation, and character expertise over combat prowess.

Conspiracy Thriller Meets Cosmic Horror: Navigate government agencies, cover-ups, and interagency politics while fighting threats beyond human comprehension.

Extensive Support: Decades of scenarios, campaigns, and sourcebooks provide endless investigation possibilities.

Whether you're a Call of Cthulhu veteran seeking modern horror, a conspiracy thriller enthusiast, or a group ready for investigation-focused gameplay where knowledge is power and ignorance is survival, Delta Green delivers unrelenting tension and unforgettable horror. The truth is out there—and it will destroy you.