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Welcome to the STAR TREK Expanded Universe!

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STEU is an encyclopedia and database, like Memory Alpha or Memory Beta, except for Star Trek fanworks instead of canon or licensed works. Fanworks include fan fiction, fan films, fan-created audio dramas, RPGs, and more, both past and present. We also chronicle the history of Star Trek fandom itself. If it's something fan-created, or a part of fanon lore, information about it belongs here. If you are interested in contributing and don't know where to start, see our most wanted pages, or view recent changes where you can see and assist in current efforts. Please enjoy the wiki!

STEU is not a storytelling venue or a host for fan fiction itself. All articles here must be sourced and properly attributed. If you are looking for a place to create your own stories, there are many fan fiction archives and other online hosts where you can post your work, and we look forward to seeing the fruits of your efforts!

The STAR TREK Expanded Universe, the wiki encyclopedia for Star Trek fanworks and fan productions! ——— There are 17,202 articles on this wiki. ——— Warning: This wiki contains spoilers.

Latest releases Posted Series Episode Date 28 June 2026 Benmata Chronicles "Book 2: chegh jubwI' (The Immortal One's Return)" 2380 22 June 2026 Starship Webster "The Best Laid Plans" 01049.2 / 2310 20 June 2026 Star Trek: Phoenix-X "Duplicitous Dispossession" 2393 18 May 2026 Starship Webster "Exfiltrators" 00941.5 / 2309 28 April 2026 None "What We Did On Frontier Day" 2411 Update this list

Featured article Terran Empire insignia. The "mirror universe" is the informal name for a parallel universe, so named because many people and places are "opposites" of their counterparts in "our" universe, with "evil" replacing good and vice versa. The history of the mirror universe during the 22nd to the 24th century has been shaped largely due to influence from the "primary" universe. During the 22nd century, the capture of USS Defiant, a Starfleet vessel from a hundred years in the future, helped to solidify the Terran Empire's grip on power and dominance over the quadrant. (ENT: "In a Mirror, Darkly", "In a Mirror, Darkly, Part II") The chance interaction between Starfleet officers from the primary universe during the 23rd century, with their counterparts from the mirror, who eventually led to the downfall of the Terran Empire and the rise of the Klingon-Cardassian Alliance. (TOS: "Mirror, Mirror"; DS9: "Crossover") Featured article archives • Nominate a featured article

Quote of the month "Remember, I've read your ship's logs, Sandy. Believe me, you need a diplomatic officer. You and your crew operate with all the subtlety of a brick through a glass window." — Lt. Commander Pell Ojana to Captain Donald Sandhurst, discussing Pell's posting to the USS Gibraltar. (Star Trek: Gibraltar: "Prophets and Loss") Archives • Nominate a quote

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Navigation Introduction Manual of Style Wanted pages Pages needing attention Fan fiction index Featured content Newest articles Policies Announcements Administrators Help FAQs Templates Featured image A Daedalus-class starship in drydock. Featured images archive • Nominate a feature image Did you know... ...that the D'jarra was a Bajoran caste system used until partway through the Occupation of Bajor? ...Darlene Hudson was a Starfleet doctor assigned to the USS Striker? ...that the USS Imperial (NCC-19018) was assigned to Deep Space 5 in the late-24th century? ...Julienne Cochrane's daughter, Sarah Cochrane passed away when she was only 6 years old? ...Star Trek: Sutherland is a fan fiction series set in the late 24th century and part of United Trek? Archives • Submit Latest fan films The Best Laid Plans (June 2026) Duplicitous Dispossession (June 2026) Exfiltrators (May 2026) What We Did On Frontier Day (Apr 2026) Update this list Title of the month Archives • Submit a title Tip: Sign up or Log in to view Star Trek Expanded Universe with less ads.