Endless Space Collection includes Endless Space and Endless Space - Disharmony.

Summary
This galaxy is ancient, and its first intelligent life was the civilization we call the Endless. Long before our eyes gazed upon the stars they flew between them, though all that remains of this people is what we call Dust. A substance found scattered or in forgotten temples, it once gave powers to admirals and galactic governors. The galaxy will belong to the faction that can take control of the Dust and uncover its secrets…

Play against up to seven opponents and build up – or break – alliances at will. Discover an innovative and dynamic simultaneous turn-based gameplay. Permit instant jump-in for your ongoing online games. Define your own custom civilizations and confront the ones created by your friends.
Control every new game’s scope, from a quick match-up to an endless war. Generate an infinity of random galaxies where every start begins a new adventure. Modify the size, shape, density, age and a lot more to create your ideal galaxy. Choose from different victory conditions and adapt your strategy on the fly.