Free Kerbal Space Program Alternatives

The best free alternative to Kerbal Space Program is Orbiter, which is also Open Source. If that doesn't suit you, our users have ranked five alternatives to Kerbal Space Program and three of them is free so hopefully you can find a suitable replacement. Other interesting free alternatives to Kerbal Space Program are Pioneer and Pioneer Scout Plus.

Kerbal Space Program alternatives are mainly Puzzle Games but may also be Sandbox Games or Simulation Gamess. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of Kerbal Space Program.

Kerbal Space Program

Paid • Proprietary
Simulation Games

Create and manage your own space program, build and fly spacecraft, and try to conquer space.

More about Kerbal Space Program

Kerbal Space Program alternatives page was last updated

Orbiter
Is this is a good alternative?
Yes
No
Free • Open Source
Windows
10 Orbiter alternatives
Orbiter is a realistic 3D real-time space flight simulator program.

Fed up with space games that insult your intelligence and violate every law of physics? Orbiter is a simulator that gives you an idea what space flight really feels like - today and in the not so distant future.
- - Orbiter is the most popular Windows alternative to Kerbal Space Program.
- - Orbiter is the most popular Open Source & free alternative to Kerbal Space Program.
Suggest and vote on features
Orbiter Features
Realistic physics
Realistic controls
Realistic graphics
Low Graphics
Comments about Orbiter as a Alternative to Kerbal Space Program
Most users think Orbiter is a great Kerbal Space Program alternative.
guiltypixel
In no way is orbiter a KSP clone... it's a realistic simulator in continuous development for 21 years and counting. Orbiter is a flight simulator, not a game. When KSP just doesn't satisfy you anymore and you can calculate Hohmann transfers in your head, try this.
Positive comment •
0

Guest
looks like it i think it's a clone
Positive comment •
-4
Pioneer
Is this is a good alternative?
Yes
No
Free • Open Source
Simulation Games
Exploration Game
Windows
Linux
14 Pioneer alternatives
Pioneer is a space adventure game set in the Milky Way galaxy at the turn of the 31st century. The game is open-ended, and you are free to explore the millions of star systems in the game. You can land on planets, slingshot past gas giants, and burn yourself to a crisp flying...
- - Pioneer is the most popular Linux alternative to Kerbal Space Program.
Suggest and vote on features
Pioneer Features
1. Works OfflinePioneer can be used without the need to connect to the internet.
2. Single playerPioneer has one or more single player game modes.
3. Player vs EnviromentYou can team up with other players to face off against the artificial intelligence in Pioneer.
Action combat
Spaces
Comments about Pioneer as a Alternative to Kerbal Space Program
Some users think Pioneer is a great Kerbal Space Program alternative, some don't.
Guest
Pioneer is not a game of simulation or building. It's more like Elite II, or Oolite.
Negative comment •
2
Pioneer Scout Plus
Is this is a good alternative?
Yes
No
Free • Open Source
Windows
Linux
6 Pioneer Scout Plus alternatives
Pioneer Scout Plus download. Pioneer Scout Plus 2015-06-01 18:01:33 free download. Pioneer Scout Plus A game of missions, trade and space combat
Pioneer Scout Plus has no features, suggest some!

Opinions about Pioneer Scout Plus as a Alternative to Kerbal Space Program
This alternative is disputed. Pioneer Scout Plus is still a legitimate Kerbal Space Program alternative, but it might have issues that some users think are important.

3 of 3 Kerbal Space Program alternatives

Free Kerbal Space Program Alternatives

Orbiter

Orbiter Features

Comments about Orbiter as a Alternative to Kerbal Space Program

Pioneer

Pioneer Features

Comments about Pioneer as a Alternative to Kerbal Space Program

Pioneer Scout Plus

Opinions about Pioneer Scout Plus as a Alternative to Kerbal Space Program