The game Star Trek: Armada has four kinds of ships, that can be considered a constructor:

Depiction	Name
	Assembler
	Federation Construction Ship
	Klingon Construction Ship
	Romulan Construction Ship

These ships build all the Stations of the game. They are rather sturdy but need big amounts of crew and are on the slow end of the game (50/s). They differ practically only in their appearance and build stations. They are unarmed but possess a Tractor Beam that allows them to tow disabled or abandoned ships. Capturing a constructor from another faction can allow for significant tactical advantages by certain powerful combinations of ships.