4x-game

UnCiv offers a streamlined, gameplay-focused reimplementation of the hugely popular Civilization that's ad-free, open-source and built for speed. The game loads and plays very fast, offering a balanced design that lets players focus on...

Rebel Galaxy features space combat in capital ships in a randomly generated universe. While non-player fighter craft and gunships are capable of three-dimensional maneuvering, the player and other capital ships are restricted to a two-dimensional plane of movement with combat...

X is a science fiction space trading and combat simulator series created by German developer Egosoft. The series is set in the X-Universe where several races populate a number of worlds connected by jumpgates.