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Against the Unknown

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Hardboiled detectives. Wartime spies. Investigators of the uncanny. Such are the intrepid heroes of AGAINST THE UNKNOWN!

Against the Unknown is a standalone RPG using a streamlined take on the GUMSHOE system to tell adventure stories in the mode of the original adventure pulps and hardboiled detective stories.

Characters in Against the Unknown are masters of their chosen fields, with extraordinary abilities.The trouble starts when they must face dangers and mysteries that likewise go far beyond the ordinary.

Features include:

- Quick character generation: background cards provide skill packages so that you can create the character you want and ensure a range of key abilities across the group.

- Unified abilities: use them just like standard GUMSHOE investigative abilities, add your rating to die rolls for general tests, and spend points from your pool to get bonuses of both kinds.

- Intuitive tracking of physical and mental harm (Damage and Shock): you can voluntarily suffer harm to boost die rolls - will you put your body or sanity on the line to succeed?

- Compatible with existing GUMSHOE materials. Got a scenario you want to run? Against the Unknown gets you up and running without delay!

In addition to the rulebook, this product comes with the following digital products as complimentary downloads:

  • character sheet, player reference sheet, GM reference, scenario & NPC creation guide
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John K December 28, 2023 6:38 pm UTC
The previews don't work.
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Thomas M December 29, 2023 3:06 am UTC
Thank you for letting me know.
I'll look into it. Probably something to do with site upgrades since the original upload.
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Product Information
Silver seller
Rule System(s)
File Size:
5.93 MB
Original electronic Click for more information
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These products were created by scanning an original printed edition. Most older books are in scanned image format because original digital layout files never existed or were no longer available from the publisher.

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For printed books, we have performed high-resolution scans of an original hardcopy of the book. We essentially digitally re-master the book. Unfortunately, the resulting quality of these books is not as high. It's the problem of making a copy of a copy. The text is fine for reading, but illustration work starts to run dark, pixellating and/or losing shades of grey. Moiré patterns may develop in photos. We mark clearly which print titles come from scanned image books so that you can make an informed purchase decision about the quality of what you will receive.
Original electronic format
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File Last Updated:
August 08, 2022
This title was added to our catalog on March 20, 2014.