Tethys Bio-Dreadnought

The Tethys-class Bioship is a massive Undine Bio-Dreadnought and one of the largest vessels in the Undine armada, second only to the titanic Planet Killer. Although Undine Psi Lords rely heavily on Nicor Bioships and Dromias Bio-Cruisers to take down their enemies, these Bio-Dreadnought can sometimes be just what is needed to turn the fight in their favor. Equipped with a vast array of abilities, Tethys Bio-Dreadnoughts present a clear threat to the species of the Normal Space.

Missions encountered

 * : The Undine Infiltrator impersonating Ambassador Sokketh retreats to his ship after being defeated by the player. The player's ship must survive the Bio-Dreadnought's attack long enough for reinforcements to arrive.
 * : Tethys-class Bio-Dreadnoughts lead the Undine forces attacking a Starbase. Defeating all five earns you the "Undine Siege Breaker" accolade.
 * : A sudden Undine appearance catches the player off guard. In a fight till death, player is forced to push back the Undine attack force to prevent the fall of both the Alpha and Beta Quadrant.
 * Undine Battlezone: Tethys-class Bio-Dreadnought are part of an Undine Bioship Armada, which is tasked with opening rifts to Fluidic Space.
 * : Undine forces led by the Psi Lord only known as Eric Cooper attack Earth and Qo'noS. With the assistance from U.S.S. Voyager and a joint Federation-Klingon-Romulan Task Force, player pushes the Undine back. However, they continue pushing into Alpha and Beta Quadrants, often attacking worlds such as Andoria, Gornar, Ferenginar and Cardassia.
 * : Tethys-class Bio-Dreadnought take part in attacks against several high-profile species of Alpha and Beta Quadrants.
 * : Tethys-class Bio-Dreadnought are seen defending the Undine Shipyards from and Alliance attack.