Advanced Search

Mutagen RPG (Beta/Playtest)Click to magnify

Mutagen RPG (Beta/Playtest)

Watermarked PDF
Suggested Price $5.00

Welcome to the Mutagen beta/playtest

This PDF game file is a beta version of the complete game. Please read and review, or even better, give it a run at your table. If you'd like to share your experiences, thoughts, and advice, please feel free to reach out to

All revenue from the sale of this playtest version of the game will be put into artwork for the next version of the product.

Game information

It’s 1984. Things look promising despite the continuing global Cold War. The respected and influential Japanese research and development company, MiraiCorp, is ascendant in the United States and much of the rest of the world. The publicly amiable and even benevolent organization has deep and dark roots, however. Its top secret Project Mutagen has been probing the genomes of animals and humans for decades, and this illegal and unethical research is the cornerstone of its business.

Chief among Project Mutagen’s successes is a serum that can mutate common animals to bestow humanoid intelligence and limited humanoid physiology. These subjects were originally intended to be used as medical and genetic research subjects, but MiraiCorp quickly recognized far more wide-ranging applications in fields such as labor, war, and espionage.

What MiraiCorp didn’t count on were a number of escapes by test subjects, and numerous instances of uncontrolled releases of the mutagen over the past couple of decades. Both have resulted in the existence of mutant animals out in the world, the discovery of which could expose MiraiCorp’s unsavory dealings and bring the whole company down.

The player characters are mutant animals who either one day simply awakened to their new intelligence and abilities, or are escaped former test subjects of Project Mutagen. Many mutant characters spend their days just trying to survive, on the run from hostile forces, often trying to help fellow mutants or others who are persecuted. Others take the fight to MiraiCorp and others who would use them as lab rats. In any case, most player characters stick to hiding in the urban jungles of large cities or less-populated rural or wilderness areas.

Mutagen is powered by Mini Six, part of the Open D6 family of games. For the purposes of this beta, reference the rules found in the Mini Six Bare Bones Edition, found here on DriveThruRPG as a "pay what you want" title.

Also included in this beta RPG:

  • Create characters from any of the 26 animal templates, ranging from tiny to huge, common to exotic
  • 31 Animal Perks and 13 Animal Complications to detail the various advantages and disadvantages provided by a mutant's residual animal nature
  • Basic setting information
  • Adventure hooks
  • Quick-stat NPCs
  • 44 pages
 Customers Who Bought this Title also Purchased
Reviews (1)
Discussions (2)
Customer avatar
Jason H August 24, 2022 2:25 am UTC
Is this game still in development or has it died on the vine? It's definitely in my wheelhouse and I'd love to get my hands on a fully fleshed-out version.
Customer avatar
Chad H September 24, 2019 9:52 pm UTC
Catching some TMNT & Other Strangeness vibes...cue early 90s nostalgia ;)
Customer avatar
Jason R September 28, 2019 3:49 am UTC
Browse Categories
 Follow Your Favorites!
NotificationsSign in to get custom notifications of new products!
 Recent History

Product Information
Rule System(s)
Publisher Stock #
File Size:
1.14 MB
Original electronic
Scanned image
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.

For PDF download editions, each page has been run through Optical Character Recognition (OCR) software to attempt to decipher the printed text. The result of this OCR process is placed invisibly behind the picture of each scanned page, to allow for text searching. However, any text in a given book set on a graphical background or in handwritten fonts would most likely not be picked up by the OCR software, and is therefore not searchable. Also, a few larger books may be resampled to fit into the system, and may not have this searchable text background.

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
These ebooks were created from the original electronic layout files, and therefore are fully text searchable. Also, their file size tends to be smaller than scanned image books. Most newer books are in the original electronic format. Both download and print editions of such books should be high quality.
File Information
Watermarked PDF
Watermarked PDF

These PDF files are digitally watermarked to signify that you are the owner. A small message is added to the bottom of each page of the PDF containing your name and the order number of your purchase.

Warning: If any files bearing your information are found being distributed illegally, then your account will be suspended and legal action may be taken against you.

Here is a sample of a page from a watermarked title:

File Last Updated:
September 22, 2019
This title was added to our catalog on September 22, 2019.