The IKV Demonfire was a 23rd century Klingon Empire starship, a QuD-class bird-of-prey in Klingon Defense Force service in the 2280s. While the Demonfire was initially outfitted as a F5C-class frigate leader, it was modifiable into an F5L-class frigate leader with altered phaser capabilities. (TOS video game: Starfleet Command)
- No history or fate is established for this vessel as its name was randomly selected for a frigate vessel by the game software.