Apocalypse Prevention, Inc.

An Action Horror RPG… with a Twist of Humor

Come Join the Fight to Protect Earth!

Monsters and demons have existed on Earth since its inception, terrorizing humanity throughout history. But some of them decided to fight back, creating a company of like-minded beings (even other demons) to defend the Earth from supernatural threats. Today, the shadow company has it’s hands in every facet of life all around the globe, using this grasp to police supernatural activity. Demon races that live on Earth (i.e. the aquatic Lochs, shapeshifting Changelings, pyrotechnic Burners, or even the enslaved Fauns) have joined the company as well, ensuring their safety as well as humanity’s.

Each agent arms themselves in a different way. Some become adepts, practitioners of magic who can learn from unique and highly customizable Paths of Magic. Some enhance their body with Cybernetic implants, chipping away a small portion of their humanity for the greater good. Some train heavily in Combat Training, learning to protect themselves without reliance on experimental technology or the very magic they seek to stop. Others meet somewhere in the middle. With almost limitless combinations of powers and abilities, they can dabble in many things and become well-rounded agents.

Apocalypse Prevention, Inc… In Brief PDF
Reviews and Interviews

Available Now!

Apocalypse Prevention, Inc. (3EG001)

Buy PDF (HERE) or Print/PDF (HERE)

Apocalypse Prevention, Inc. defends the Earth from harm and has done so since the black plague… you would do wisely to join them. Written by Eloy Lasanta, “Apocalypse Prevention, Inc.” is a 184-page corebook that details everything you need to become agents and protect the Earth. Uses the Dynamic Gaming System (DGS), with flexible character creation and fully immersive combat mechanics and requires only a single D20 to play!

This book includes:

  • Full details regarding API, their methods and motivations
  • 10 playable races, from Humans to the vampiric Taylari and the lunatic Wolf People
  • Fully immersive Combat Mechanics, putting you inside the action!
  • Complete rules for cybernetics and 18 customizable Paths of Magic

API Worldwide: Canada (3EG002)

Buy PDF (HERE) or Print/PDF (HERE)

API Worldwide: Canada is the first regional sourcebook for Apocalypse Prevention, Inc. It is a complete guide to playing in or running adventures set in the Canadian region. Details on the dreaded entity known as the Thing Under the Ice and the plans of the Circle of Ten’s Great Strategist, along with new races, magic, creatures, and equipment await within.

This book includes:

  • Information on the region, threats to its safety and API’s strategies
  • New Equipment, Magic, Fighting Techniques, and optional Combat Mechanics
  • Playable Races for Canada, including Wendigo and mysterious Husks
  • Two Adventures included!

API Demon Codex: Lochs (3EG003)

Buy PDF (HERE) or Print/PDF (HERE)

Demon Codex: Lochs is the first racial sourcebook for Apocalypse Prevention, Inc. It is a complete guide for players and GMs to the Lochs and other newly introduced aquatic races. Details on the Loch culture, their struggle with lost power and fall from grace, their research into the Half-Loch phenomenon, and their calling to return await within.

This book includes:

  • Information on all the aspects of Loch existence on Earth and in Domainya
  • New Passions, Gifts and Drawbacks, and Aquatic Magic
  • Playable Aquatic Races, including the power hungry Voltics and the Scryers, creators of the Contagion
  • Three Adventures Included!

API Worldwide: Europe (3EG004)

Buy PDF (HERE) or Print/PDF (HERE)

API Worldwide: Europe is the second regional sourcebook for Apocalypse Prevention, Inc. It is a complete guide to adventures set in the European Union and other European locales. Details provided on the various oaths the company has made with their demon comrades… and the lengths they go to keep the Earth safe. The secrets of Europe await within.

This book includes:

  • Information on the European HQ and their efforts as keepers of API’s Oaths
  • New Equipment, Orders, and Legendary Antagonists
  • New Playable Races for Europe, including the majestic Chiron and enigmatic Hidden Folk

API Demon Codex: Spectrals (3EG005)

Buy PDF (HERE) or Print/PDF (HERE)

Demon Codex: Spectrals is the second racial sourcebook for Apocalypse Prevention, Inc. and serves as a complete guide to adding ghosts and spirits to your game as characters or antagonists. Details on their dead gatherings and horrible threats await within, along with several new Evolved Spirit types that go beyond what science has deemed possible.

This book includes:

  • Information on the daily existence of Spectrals and their involvement with API
  • New Equipment, Magic, and Threats to the Dead
  • New Evolved Spirit Types and playable races, like the shambling Walkers

Other Products

API Anthology: Volume 1 (3EGAAV1)

Welcome to the world of Apocalypse Prevention, Inc. This 9 story anthology lets you experience the mystery through the eyes of those that live in it. Take a walk on the wild side of magic, monster hunting and demons lurking around every corner. From the minds of RPG industry favorites and newcomers alike.

Authors: Brennan Bishop, Clint Black, Stacey Gossett, Mark Hall, Josh Hilden, Lyndsey Holder, John D. Kennedy, Rucht Lilavivat, and Darren Pearce



API Demon Pack 01

This PDF includes three new races from the winners of of Third Eye Games’ first demon contest in March 09. These new races are fully balanced and ready for play in any game set in the Apocalypse Prevention, Inc. universe. Enjoy!
  • Naga (Serpent people entrenched in Earth’s religious cultures)
  • Jaguar Warriors (Central American blood demons)
  • Hopkins (Dimension hopping, alien-like demons)

API Demon Pack 02


The second Demon Pack holds another bunch of new races for use in any API game. Though they are flavored mainly by API Worldwide: Europe, these new demons are useable in almost any campaign. Contains the following:

  • Dunbar (Beings of stone with a viscious appetite)
  • Grandels (Aquatic race similar to an anglerfish)
  • Olivers (Born thieves with blue, sharp skin)

Crooners (Free Demon Race)

FREE Download

The Crooners, a new race for Apocalypse Prevention, Inc. They come from a dimension of absolutely nothing, but made it to earth with the company’s help. Now, they are musical geniuses with powers to read the future.

In memory of Andy Hallett (August 4, 1975 – March 29, 2009) 

Seafood Chowder (Free API Adventure)

FREE Download

This adventure creates a difficult dilemma that forces the agents to pick a side in a very crucial aquatic battle of territory. The wrong choice could lose some powerful allies and make dangerous enemies. Suitable for 3-5 players.


Get Character Sheets (Single, 3-page and combat tracker), Character Creation Example (to show you how it’s done), Pregenerated Characters (6 fully filled out sheets usable in any campaign) and the Initiative Calculator (to help with running combat) on the Goodies page.

Coming Soon!

. . Multiroom Amplifier|white party tent