| U.S.S. Prometheus | Ship | Federation/Romulan | (The Borg - 124 R+) |
| Battle Cruiser | Ship | Klingon/Romulan | (Identity Crisis - 23 V) |
| Cha'Joh | Ship | Klingon/Romulan | (Identity Crisis - 24 V) |
| Apnex | Ship | Romulan | (Rules of Acquisition - R) |
| B-Type Warbird | Ship | Romulan | (Dogs of War - 53 V) |
| Bird-of-Prey | Ship | Romulan | (Cold Front - 52 V) |
| Bird-of-Prey, Mk II | Ship | Romulan | (The Neutral Zone - 52 V) |
| D'deridex | Ship | Romulan | (Premiere - C) |
| D'deridex | Ship | Romulan | (Premiere (Collector's Tin) - C) |
| D'deridex | Ship | Romulan | (Premiere Beta (WB95) - C) |
| D'deridex | Ship | Romulan | (Premiere Alpha (WB94) - C) |
| D'deridex Advanced | Ship | Romulan | (The Dominion - R) |
| D'deridex Advanced | Ship | Romulan | (Reflections - SR) |
| Decius | Ship | Romulan | (Alternate Universe - R) |
| Decius | Ship | Romulan | (Reflections - VR) |
| Deranas | Ship | Romulan | (Second Edition - 410 U) |
| Deranas | Ship | Romulan | (Engage - 53 V) |
| Deranas | Ship | Romulan | (Virtual Promos - 160 VP) |
| Devoras | Ship | Romulan | (Premiere - R) |
| Devoras | Ship | Romulan | (Premiere (Collector's Tin) - R) |
| Devoras | Ship | Romulan | (Premiere Beta (WB95) - R) |
| Devoras | Ship | Romulan | (Premiere Alpha (WB94) - R) |
| Gal Gath'thong | Ship | Romulan | (The Trouble with Tribbles - 113 R) |
| Gal Gath'thong | Ship | Romulan | (Borderless Promos - 7 B) |
| Goraxus | Ship | Romulan | (Blaze of Glory - R) |
| Goraxus | Ship | Romulan | (Blaze of Glory - F) |
| Haakona | Ship | Romulan | (Premiere - R) |
| Haakona | Ship | Romulan | (Second Edition - 411 R) |
| Haakona | Ship | Romulan | (Premiere (Collector's Tin) - R) |
| Haakona | Ship | Romulan | (Premiere Beta (WB95) - R) |
| Haakona | Ship | Romulan | (Premiere Alpha (WB94) - R) |
| Khazara | Ship | Romulan | (Premiere - R) |
| Khazara | Ship | Romulan | (Energize - 178 R) |
| Khazara | Ship | Romulan | (Reflections - VR) |
| Khazara | Ship | Romulan | (Premiere (Collector's Tin) - R) |
| Khazara | Ship | Romulan | (Premiere Beta (WB95) - R) |
| Khazara | Ship | Romulan | (Premiere Alpha (WB94) - R) |
| Norexan | Ship | Romulan | (Nemesis - 51 V) |
| Pi | Ship | Romulan | (Premiere - R) |
| Pi | Ship | Romulan | (Premiere (Collector's Tin) - R) |
| Pi | Ship | Romulan | (Premiere Beta (WB95) - R) |
| Pi | Ship | Romulan | (Premiere Alpha (WB94) - R) |
| Raptor One | Ship | Romulan | (Straight and Steady - 50 V) |
| Raptor Two | Ship | Romulan | (Cold Front - 53 V) |
| Romulan Shuttle | Ship | Romulan | (Blaze of Glory - C) |
| Rovaran | Ship | Romulan | (Tenth Anniversary Collection - 23 P) |
| Rovaran | Ship | Romulan | (Dogs of War - 54 V) |
| Science Vessel | Ship | Romulan | (Premiere - C) |
| Science Vessel | Ship | Romulan | (The Next Generation: Supplemental - 45 V) |
| Science Vessel | Ship | Romulan | (Premiere (Collector's Tin) - C) |
| Science Vessel | Ship | Romulan | (Premiere Beta (WB95) - C) |
| Science Vessel | Ship | Romulan | (Premiere Alpha (WB94) - C) |
| Scimitar | Ship | Romulan | (Second Edition - 413 R) |
| Scimitar | Ship | Romulan | (Chain of Command - 15 V) |
| Scorpion One | Ship | Romulan | (Nemesis - 52 V) |
| Scout Vessel | Ship | Romulan | (Premiere - C) |
| Scout Vessel | Ship | Romulan | (Premiere (Collector's Tin) - C) |
| Scout Vessel | Ship | Romulan | (Premiere Beta (WB95) - C) |
| Scout Vessel | Ship | Romulan | (Premiere Alpha (WB94) - C) |
| Serrola | Ship | Romulan | (Second Edition - 414 R) |
| Serrola | Ship | Romulan | (The Gamma Quadrant - 53 V) |
| Soterus | Ship | Romulan | (Call to Arms - 208 R) |
| Soterus | Ship | Romulan | (Ships of the Line - 18 V) |
| T'Pau | Ship | Romulan | (Q Continuum - U) |
| Terix | Ship | Romulan | (Q Continuum - R) |
| Terix | Ship | Romulan | (Energize - 179 R) |
| Trolarak | Ship | Romulan | (Energize - 180 R) |
| Trolarak | Ship | Romulan | (Homefront III - 35 V) |
| Valdore | Ship | Romulan | (Second Edition - 415 R) |
| Valdore | Ship | Romulan | (Nemesis - 53 V) |
| Stolen Ship | Ship | Romulan/Federation | (The Sky's the Limit - 54 V) |
| U.S.S. Prometheus | Ship | Romulan/Federation | (Virtual Promos - 105 VP) |
| Battle Cruiser | Ship | Romulan/Klingon | (Mirror, Mirror - 129 C) |
| Cha'Joh | Ship | Romulan/Klingon | (Deep Space 9 - R) |
| Cha'Joh | Ship | Romulan/Klingon | (Reflections - VR) |
| Quantum Singularity Lifeforms | Dilemma | (Alternate Universe - U) | |
| Quantum Singularity Lifeforms | Dilemma | (Virtual Promos - 225 VP) | |
| Romulan Cloaking Device | Equipment | (Mirror, Mirror - 20 U) | |
| Incoming Message - Romulan | Interrupt | (Premiere - U) | |
| Incoming Message - Romulan | Interrupt | (Premiere (Collector's Tin) - U) | |
| Incoming Message - Romulan | Interrupt | (Premiere Beta (WB95) - U) | |
| Incoming Message - Romulan | Interrupt | (Premiere Alpha (WB94) - U) | |
| Plasma Torpedo | Tactic | (Blaze of Glory - C) | |
| Plasma Torpedo | Tactic | (BaH! - 23 V) | |
| Plasma Torpedo | Tactic | (Tournament Foils - PF) |