Starfleet Command: Orion Pirates is an expansion pack for the space flight simulator game Starfleet Command II: Empires at War, which belongs to the Star Trek franchise of computer games. This is a stand-alone expansion that adds to the gameplay of Empires at War and employs real-time tactics. The focus of this expansion pack is the Orion Pirate ships, which are different from the other ships in the Star Trek games. As pirate ships, these tend to have “booty”—different kinds of technology—taken from the major governments in the Star Trek universe. The multitude of various forms of technology makes the Orion Pirate ships powerful and difficult to defeat.
The Starfleet Command: Orion Pirates expansion pack adds eight playable pirate leagues to the Empires at War game, making it more challenging. The ships of the Orion pirates have less engine power but since most of their weapons do not require charging, the ships retain speed and energy efficiency. Another advantage of the Orion pirate ships is their ability to have twice as much engine power in a short time. Players can choose to command an Orion pirate ship over other ships of the Empire. In the Star Trek games, there are eight races players can choose from, and there are different storylines based on which race a player chooses. Different storylines also offer varied missions.
The Starfleet Command: Orion Pirates expansion pack also allows users to engage in multiplayer games, as well as play through GameSpy.