The KCS Leviathan is, quite simply, the largest spacefaring vessel ever crafted by human hands. At over three miles in length, the Leviathan weighs more than one billion metric tons. It’s exact crew loadout is unknown, but it could easily transport between 10,000 and 50,000 personnel. The entire vessel is powered by a series of three antimatter reactors each programmed to compensate for inconsistencies in the other. One is more than sufficient to run the vessel at full capacity, but the other two allow the Leviathan to shutdown a potentially dangerous reactor in the event of even a minor malfunction. Aside from its size, the vessel’s most distinctive aspect is the colossal electromagnetic shield proejected from the prow, which can stop projectiles from the most powerful mass drivers midflight.
Innumerable aerospacecraft and dropship bays stud the Leviathan, and layer upon layer of armor protect it from all but the most devastating weaponry. The ship’s only noticeable shortcoming (which its commander, Rear Admiral Falkland, complains about to no end) is its total lack of large-scale armaments. Most of the Leviathan’s systems are defensive in nature, and the vast majority of available hullspace has been converted to accommodate bays for smaller craft.
The Leviathan’s development has spurred a number of conspiracy theories as to its ‘true purpose’ (whether as a fusion warhead slinging city-killer or an out-of-Realm colony ship), the craft has yet to be deployed and thus all rumors remain completely unsubstantiated.