A new Star Trek Adventures sourcebook is now available. Modiphius Entertainment’s new book, Star Trek Adventures Allies and Adversaries, provides rules for many beloved alien organizations from the iconic sci-fi series, greatly expanding potential stories at the gaming table.
The Star Trek Adventures Allies and Adversaries Sourcebook Announcement
According to an official press release, Star Trek Adventures Allies and Adversaries is a new supplement for Star Trek Adventures Second Edition. The material is compatible both with the core rules and the solo adventure rules found in Star Trek Captains Log.

The book will allow players and GMs to learn more about the many alien factions in the universe of Star Trek. They can create, modify, and use interesting, and cunning allies and adversaries, bringing them to life in dramatic, engaging stories within single missions or even an entire campaign.
This 128-page supplement will include the following:
Guidance on using NPCs as helpful allies, expanding on material found in the Core RulebookInformation on several factions, including the Breen Confederacy, the Cardassian Union, the Dominion, the Gorn Hegemony, the Orion Syndicate, the Klingon Empire, the Romulan Star Empire, the Tholians, the Borg Collective, and many moreGame stats for dozens of Minor, Notable, and Major NPCs, among the various factions mentioned aboveGame stats for several Star Trek creatures as well as rules and guidance on how to create your own original creatures
Star Trek Adventures Allies and Adversaries continues Modiphius’ considerable long-term support for the officially licensed TTRPG. It joins the Species Sourcebook, which provided rules on playing as different iconic races, a tie-in book based on the animated show, Lower Decks, and prewritten campaigns like The Federation-Klingon War. Given the series’ sixty-year history, there is plenty to pull from.
Star Trek Adventures Allies and Adversaries is available for pre-order now from Modiphius’ webstore at an MSRP of $55. The books are expected to ship on July 2026.
