Star Trek Adventures Opens Hailing Frequencies With New Allies & Adversaries

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Modiphius Entertainment’s Star Trek Adventures RPG will soon let players make a few new friends (and a healthy dose of intergalactic enemies) at the tabletop. The upcoming Allies and Adversaries Sourcebook offers GMs a range of new lore when it comes to the various factions and NPCs found within the Star Trek Universe, as well as offering new mechanics to create your own.

The book is currently slated for release in July 2026, but you can pre-order it now from your local game store and the Modiphius website. Below, we run up our sensor array and scan of what’s inside.

What is the Star Trek Adventures Allies and Adversaries Sourcebook?

Allies and Adversaries is a 128-page, full-color supplement for Modiphius’s Star Trek Adventures second edition (although as with most of their sourcebooks, it’s also fully compatible with the first edition of the game and the Captain’s Logo solo RPG). The book is geared primarily towards Gamemasters and includes:

• Faction information: This offers detailed background and lore on major powers across multiple Star Trek time periods, including the Borg, the Cardassians, the Dominion, the Klingon Empire, the Romulans and the Tholians (among others).
• New NPCs: The book expands on NPC content found in the STA core rulebook, and offers additional advice on using NPCs as allies, including suggestions on balancing encounters. In addition, it includes a wide range of new stat blocks for Minor, Notable and Major NPCs, all of which are associated with the various factions included in the book.
• New creatures: The book includes a range of stat blocks for creatures found throughout Star Trek, as well as rules and guidance on how to create your own original creatures for use in your missions and campaigns.

How much is the Star Trek Adventures Allies and Adversaries Sourcebook?

The physical hardcover version retails for $54 USD (not including shipping and handling). The book will also be available in a PDF format via DriveThruRPG, but a price has not yet been confirmed. Notably, if you pre-order the book now, however, you’ll immediately receive a free PDF copy, which is fulfilled via DriveThruRPG.

When will the Allies and Adversaries Sourcebook be released?

The book is currently slated for release in July 2026, at which point will be available online and local game stores. We’ll update this page with an exact release date once it’s been confirmed by Modiphius.

Why we’re excited about Star Trek Adventures Allies & Adversaries?

• More table-useable faction: While we did see some factions presented in the previous releases (including the STA 2E core rules), it’s great to see a supplement that digs deeper into some of the most iconic forces that deal with the Federation.
• More NPCs: Past STA 2E sourcebooks have been a little light on NPCs (especially when it comes to stat blocks) so this feels like a much needed addition, particularly as tie ins to the various factions.
• Creature creation rules: The new mechanics and guidance for creating entirely original creatures sounds like a solid additon, and it’s surprising that we haven’t really seen these types of fully fleshed out rules already.
• More second edition content: Star Trek Adventures 2E is still a relatively new system (having only been released in August 2024) so it’s great to see that Modiphius is continuing to support the game with new products.

Final thoughts

A huge appeal of the Star Trek universe is the wide range of different factions and forces that populate the galaxy, so the new Allies and Adversaries Sourcebook feels very much like an essential add-on for the Star Trek Adventures RPG. The challenge is simply fitting the massive amount of lore into a single volume, so we’ll have to see how the book handles this once it’s released.

We’ll be doing a complete review closer to launch, but in the meantime you can pre-order your copy now from your local game store and the Modiphius website.