Empyrion - Empyrion is a 3D open world, space survival adventure in which you can fly across space and land on...
EVE Online - Player-created empires, player-driven markets, and endless ways to embark on your personal sci-fi adventure.
Avorion - Explore, build, fight, trad and mine in a procedural co-op space sandbox.
Star Conflict - Star Conflict is a free MMO action game and space simulator that was introduced in 2012.
StarMade - StarMade is a Minecraft inspired 3D space shooter.
Star Trek Online - Star Trek Online (STO) is a free to play MMORPG that takes place inside the Star Trek world.