What Is Delta Green?

Delta Green is a modern-day roleplaying game of cosmic horror, conspiracy, and moral compromise.

We play as ordinary people—federal agents, scientists, soldiers, doctors, analysts—who secretly serve an illegal, off-the-books government program dedicated to one purpose:

Stopping the unnatural from destroying humanity.

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The World of Delta Green

Beneath everyday reality lies a hidden truth:

• Ancient entities older than humanity still exist

• Some gods do not care if you believe in them

• Magic is real, but it breaks the people who use it

• Knowledge itself can be lethal

Delta Green agents operate in secrecy, covering up impossible events, containing artifacts that should not exist, and silencing threats the public must never know about.

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The Horror

Delta Green draws from:

• Lovecraftian cosmic horror

• Government conspiracies

• Psychological terror

• Body horror

• Religious and existential dread

The enemy may be a cult, an artifact, an entity pretending to be human—or something so vast it barely notices you exist.

And sometimes the enemy is your own orders.

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Delta Green isn’t about winning.
It’s about deciding what you’re willing to lose so the world survives one more day.