Mirror Universe hostiles are ships from the mirror timeline that appear in Mirror Universe space in Star Trek Fleet Command. Three groups fly here: the Terran Imperial Starfleet, the Alliance, and the Romulan Republic, plus a holographic Mirror Picard commanding the I.S.S. Enterprise-E. They run from level 35 to 70 and drop Raw Trellium, the material behind the Mirror Universe arc, with the mining types also paying ship parts and faction reputation. Each hostile below links to its own full guide.
Every Mirror Universe hostile at a glance
The table covers all seventeen Mirror Universe hostiles that have a published guide, sorted from the lowest-level target to the highest. Most come in two flavors: a base version that drops Raw Trellium-A, and an Omega version (marked with the Ω symbol in game) that drops the higher-grade Raw Omega-Trellium. Match a target to your level, check the warp you need, and see what it drops before you fly out.
| Hostile | Levels | Hull | Warp | Key drop |
|---|---|---|---|---|
| Alliance Bird-of-Prey | 35–70 | Interceptor | 50–800 | Raw Trellium-A |
| Alliance Galor-class | 35–70 | Battleship, Explorer, Interceptor | 50–800 | Raw Trellium-A |
| Alliance Recon | 35–70 | Explorer | 50–800 | Raw Trellium-A |
| Alliance Warbird | 35–70 | Battleship | 50–800 | Raw Trellium-A |
| Imperial Starfleet Planet Harvester | 40–65 | Survey | 0–700 | 4★–6★ Broken Parts (all hulls) |
| Imperial Starfleet Ω-Annihilator | 40–65 | Interceptor | 75–700 | Raw Omega-Trellium |
| Imperial Starfleet Ω-Cruiser | 40–65 | Explorer | 75–700 | Raw Omega-Trellium |
| Imperial Starfleet Ω-Warship | 40–65 | Battleship | 75–700 | Raw Omega-Trellium |
| Romulan Republic Cruiser | 48 | Explorer | 150 | Raw Trellium-A |
| Romulan Republic Dreadnought | 48 | Battleship | 150 | Raw Trellium-A |
| Romulan Republic Ω-Dreadnought | 48 | Battleship | 125 | Raw Omega-Trellium |
| Alliance Ω-Bird-of-Prey | 48–70 | Interceptor | 120–700 | Raw Omega-Trellium |
| Alliance Ω-Galor-class | 48–70 | Battleship, Explorer, Interceptor | 120–700 | Raw Omega-Trellium |
| Alliance Ω-Recon | 48–70 | Explorer | 120–700 | Raw Omega-Trellium |
| Alliance Ω-Warbird | 48–70 | Battleship | 120–700 | Raw Omega-Trellium |
| Romulan Republic Miner | 48–70 | Survey | 125–800 | 4★–6★ Broken Parts (all hulls) |
| I.S.S. Enterprise-E | 50–70 | Survey | 75–700 | Raw Trellium-A |
There are no station or armada targets in Mirror Universe space, so every entry is a straight ship kill. The Alliance ships cover the widest spread, level 35 to 70, while the Imperial Starfleet and Romulan Republic ships sit in the level 40 to 70 band. The two Survey-hull targets, the Imperial Starfleet Planet Harvester and the Romulan Republic Miner, are the odd ones out: they drop Broken parts for all three combat hulls, scaling from 4-star up to 6-star as their level climbs.
What Mirror Universe hostiles drop
Unlike the permanent faction hostiles, Mirror Universe ships are tied to the Mirror Universe arc, and their signature reward is Trellium. The base and neutral ships drop Raw Trellium-A, the Omega versions drop the higher-grade Raw Omega-Trellium, and the I.S.S. Enterprise-E drops both Raw Trellium-A and the rarer Raw Trellium-D. You refine the raw material into Trellium to spend on the arc’s rewards.
Killing these ships does not pull a faction’s reputation down the way Klingon or Federation hostiles do. In fact the two mining types, the Imperial Starfleet Planet Harvester and the Romulan Republic Miner, pay Federation, Romulan, and Klingon reputation points all at once, on top of their Broken parts. That makes them a rare target that builds three standings together instead of trading one against another.
Which ship should you bring?
Combat in STFC runs on a rock-paper-scissors between hull types. Interceptors beat Battleships, Battleships beat Explorers, and Explorers beat Interceptors. The Hull column in the table tells you what each target flies, so bring the class that counters it. The Alliance Galor-class shows up as all three combat hulls, which lets you attack the version your strongest ship already beats. The Survey-hull targets have no combat counter, so you hit them with a strong warship crewed for hostile damage.
Most Mirror Universe ships share an ability called Deadlock that hull-breaches your ship at the start of combat, along with a partner ability that raises their damage while you are hull breached. Bring strong hull and mitigation so that opening breach does not snowball on you. The I.S.S. Enterprise-E is a special high-level target commanded by a holographic Mirror Picard, with Assimilate and Isolytic abilities, so save it for an endgame crew.
For crew in general, you want a captain that raises damage against hostiles plus officers that add damage or survivability. Good picks change with the meta and your own roster, so use the officer tier list for current recommendations at your level.
Worth-farming picks
A few Mirror Universe targets stand out once you line up the table against what you need:
- Early on, start with the base Alliance ships at level 35. The Alliance Bird-of-Prey, Alliance Recon, and Alliance Warbird drop Raw Trellium-A at low warp while you learn the region.
- For the most Trellium per kill, move to the Omega ships. The Alliance Ω-Warbird, Alliance Ω-Bird-of-Prey, and Alliance Ω-Recon cover Battleship, Interceptor, and Explorer hulls from level 48 to 70 and all drop Raw Omega-Trellium, so you can pick the one your fleet counters.
- To build parts and reputation at the same time, farm the Romulan Republic Miner or Imperial Starfleet Planet Harvester. Both are Survey-hull, drop Broken parts for every combat hull (4-star up to 6-star by level), and pay Federation, Romulan, and Klingon points together.
- For an endgame challenge, the I.S.S. Enterprise-E at level 50 to 70 drops both Raw Trellium-A and the rarer Raw Trellium-D, but its Mirror Picard crew brings Assimilate and Isolytic abilities, so take it on with a strong endgame fleet.