ASCIILL - Third-person action puzzle game with the crazy retro style.
EVE Online - Player-created empires, player-driven markets, and endless ways to embark on your personal sci-fi adventure.
FTL: Faster Than Light - FTL is a spaceship simulation roguelike-like.
Star Conflict - Star Conflict is a free MMO action game and space simulator that was introduced in 2012.
SpaceX Interplanetary Transport System - A simple rocket that takes humans to Mars.
Star Trek Online - Star Trek Online (STO) is a free to play MMORPG that takes place inside the Star Trek world.