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Star Trek Adventures: Gamma Quadrant Sourcebook


The Gamma Quadrant Sourcebook provides Gamemasters and Players with a wealth of information to aid in playing characters or running adventures set within the ever-expanding Star Trek universe. The Gamma Quadrant Sourcebook contains: 

  • Information on the Federation’s relationship with the Dominion and other Gamma Quadrant denizens, as of 2375.
  • Material about the Dominion and its history, structure, and culture; including information on many of its member worlds, allies, and enemies.
  • Detailed information about the brutal Dominion War, from its beginnings as a cold war to open conflict involving billions of beings.
  • A dozen new alien species to choose from during character creation, including the Dosi, Lurians, S’ona, Wadi, and the Changelings!
  • A selection of starships from the Dominion and S’ona, as well as several notable wartime Federation vessels.
  • Guidance for the Gamemaster on running missions and continuing voyages in the Gamma Quadrant and on the front line, along with a selection of new Non-Player Characters to enhance encounters. 

This book requires the Star Trek Adventures Core Rulebook to use.

TM & © 2020 CBS Studios Inc. STAR TREK and related marks and logos are trademarks of CBS Studios Inc. All Rights Reserved.

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Reviews (3)
Discussions (5)
Customer avatar
Adam D March 19, 2020 4:30 pm UTC
I was very much looking forward to this and picked it up right away. Sadly, I was a tad disappointed. While overall it is Modiphius' usual excellent work, it is missing some key things that I assumed would be a given. Character Creation has the Dosi, Lurians, Wadi (really?), but not the Vorta or Jem'Hadar? No map of the Gamma Quadrant? Again, what we got was good but I guess I was hoping for things that just weren't in the minds of the designers.
Customer avatar
Jarrod G April 22, 2020 5:51 pm UTC
Hello Adam,

I don't believe that you really need an empty map of the Gamma Quadrant, the designers should focus on more important aspects. Also, as far as dealing with missing character creation species, I think that it is important to note that we actually have the information we need for character creation for Jem'Hadar and Vorta, you can find relevant information for them in the core rulebook starting on page 329. I suggest using them to start out with, and then lifting talents and traits that you find also reflect the two.

Keep in mind that due to the genetically designed aspects of these two species, the life path creation of these characters would be essentially absent and irrelevant. So, their basic stat blocks are essentially what players should have to start with when starting to play these characters. This may have been better itterated in the actual book, but that is my interpretation of their absense.
Customer avatar
Megan R March 13, 2020 3:14 pm UTC
Read my review at
Customer avatar
Dave T February 03, 2020 5:54 pm UTC
I did a video review of Gamma Quadrant on YouTube. Check it out:
Customer avatar
Martin A January 12, 2020 12:45 pm UTC
Preview doesn't work
Customer avatar
Jim J January 30, 2020 9:15 pm UTC
Appears to be working now.
Customer avatar
Michael A January 11, 2020 1:49 am UTC
Why no map of the Gamma Quadrant? Same Alpha Quadrant map but focusing on DS9/Dominion War??? I know that there are some maps both from STO and a Star Trek Stellar Cartography book that does gives some glimpses.
Customer avatar
Jim J January 30, 2020 9:21 pm UTC
We chose to go with a map of the Dominion War over a map of the Gamma Quadrant mostly because there's not much canonical information about the GQ map-wise, and felt providing a largely empty map as endpapers would be less useful than a map of the war events. As you say, there are a couple maps out there for what is known of the GQ, but most of the quadrant is effectively open space ready for exploration and for players and gamemasters to detail to their purposes.
Customer avatar
Jay W January 31, 2020 9:40 pm UTC
It would be nice if you threw together a Gamma Quadrant map on a pdf for download on your site.
Customer avatar
Jarrod G April 22, 2020 5:46 pm UTC
That is a good point. We have the ability to make edits to star charts via photo editing software if we need to do so. No need to waste dev/design time and money to work on a mostly empty map that you know that players can get ahold of with a quick google search. I mean that in all honesty. I also believe that, in many ways, less is more.
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File Last Updated:
January 07, 2020
This title was added to our catalog on January 09, 2020.