Ships are the primary combat unit in the game.
The design and construction of ships determines effectiveness of tactical battles. Many technologies directly affect the possibilities for ship design. Due to the randomised technologies in the game, ship sections and weapon type availability are not the same from game to game.
Ships cannot be refitted or upgraded once they have been built. Ships can also be repaired out of combat by specialized repair vessels.
In the case of Destroyers and Cruisers the destruction of two sections will result in the ship's destruction. As each individual section is destroyed, any weapons or special features mounted on that section are also removed. Dreadnoughts require all three sections to be destroyed to render the ship destroyed and each section will remain online until the entire ship is destroyed.