Kerbal Space Program
Build spacecraft, fly them, and try to help the Kerbals to fulfill their ultimate mission of conquering space.
15 Alternatives To Kerbal Space Program
Avorion
Explore, build, fight, trad and mine in a procedural co-op space sandbox.
Celestia
Celestia - real-time 3D visualization of space.
Elite Dangerous
Elite Dangerous is a 2015 Trading, Action, Sci-fi, Exploration, Open World and Space Simulation by Frontier Developments.
Empyrion
Empyrion is a 3D open world, space survival adventure in which you can fly across space and land on…
Evochron Mercenary
Official Webpage for Evochron Mercenary, a 3D space combat and trader simulation. Screenshots, free demo, forum, cheats, videos, and more.
Homeworld
Homeworld is an Action-Adventure, Science-fiction, Real-time Strategy, Real-time-tactical, Single and Multiplayer Space Simulation created by Relic Entertainment and published by Sierra Entertainment.
Orbiter
Orbiter is a realistic 3D real-time space flight simulator program. Official site with free download. DownloadDownload mirror 1 Europe - Textures - Gallery - Links - .
ScrumbleShip
ScrumbleShip is the most accurate space combat simulation devised to date.
Shores of Hazeron
Unscripted, living and thriving universe.
Space Engine
Space Engine is a realistic virtual Universe you can explore on your computer.
Spore
Player Made Creations. Download the free Creature Creator to start making your own unique creations. See More · Spore. rabbi airs. Kangster.
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.
Universe Sandbox
Universe Sandbox ² is a physics-based space simulator.
Vendetta Online
The space-based MMO Vendetta Online balances an online trading system with tense ship-to=ship combat.