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Worldwide conspiracies, old mysteries in new light, and powerful artifacts from the past. Mission Marginalia is a supplement for the External Containment Bureau RPG. Within is a collection of three missions, unique artifacts, and new paranormal powers. They are inspired by stories like Hellboy, Indiana Jones, and other pulpy stories about chasing ancient artifacts across the world. Sprinkle these missions throughout your campaign to hint at larger conspiracies, or play them back to back for a thematic arc of historical mysteries, strange dangers, and maybe even divine visitations. 

Within this PDF you will find:

  • 3 missions complete with starting complications, clues, and NPCs
  • 3 objects contained or monitored by the Bureau
  • 4 new paranormal powers

Mission Marginalia requires a copy of ECB to play.

Also available on DriveThruRPG


Written & Designed by Michael Elliott

This work uses material from the External Containment Bureau roleplaying game (found at, designed by Lexi Antoku, Eric Brunsell, Michael Elliott, Justin Ford, and Eli Kurtz, and published by Mythic Gazetteer LLC, pursuant to the open license available at


Get this game and 20 more for $100.00 USD
View bundle
Buy Now
On Sale!
22% Off
$5.00 $3.90 USD or more

In order to download this game you must purchase it at or above the minimum price of $3.90 USD. You will get access to the following files:

Mission Marginalia v1.0.pdf 135 kB

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Community Copies

Everyone who purchases this supplement provides a copy for someone to download free of charge. These community copies are intended for those who are experiencing financial hardships and cannot pay for a copy. If you want to check out this game and cannot afford the price, help yourself.

You can also get this game, and all my games, for a small monthly pledge on Patreon or Ko-fi.

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