It replaces the original X3 music with some music from the motion picture Serenity and the TV series Firefly

The Sequel to the award winning X²: The Threat will introduce a new 3D engine as well as a new story, new ships and a new gameplay to greatly increase the variety in the X-universe. The economy of X³: Reunion will be more complex than anything seen in the X-universe before. Factories are being built by NPCs, wars can affect the global economy, NPCs can trade freely and pirates will behave far more realistically so they can offer a much more of a challange.

Extensive development has gone into the X³ engine, making full use of DirectX 9 technology, to create dramatic visual effects and stunningly realistic starships. Coupled with the massively enhanced A.L. (Artificial Life) system, X³: REUNION will present players with an ever changing, evolving universe; where a players actions really can shape the future of the universe.

Newcomers will enjoy the additions to the already graphically impressive, almost living X³-Universe, while veterans can expect new construction options and an improved physics model.

What happened so far: While the Argon fleet is stretched almost to breaking point by the continuing attacks from Khaak, a new enemy is stalking the X-universe. What links a mysterious ship with the power to disappear, the ruthless Yaki pirates and a machine left by an ancient species? Its time to strap yourself into your cockpit, warm up your laser cannon and get some answers.