From the manual: SFC3 is a game of tactical starship combat set in the Star Trek: The Next Generation era of the Star Trek universe. It contains a single player campaign in which you can experience an epic universal conflict from three sides: Klingon, Romulan, and Federation. [...] SFC3 also brings you Dynaverse 3, an exciting multiplayer component that allows you to join one of 4 empires and fight alongside and against other captains for control of the galaxy.