Space Engine AlternativesOnly apps categorised as Open World Games

The best Open World Game alternative to Space Engine is No Man's Sky. It's not free, so if you're looking for a free alternative, you could try TerraGenesis. If that doesn't suit you, our users have ranked more than 25 alternatives to Space Engine and three of them are Open World Games so hopefully you can find a suitable replacement.

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Most Space Engine alternatives are Open World Games, but you can also narrow the list to Role-playing Games or Sandbox Games. Other popular filters are Android, Mac, Linux and Windows.

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Space Engine alternatives page was last updated Jan 29, 2026

No Man's Sky
35 likes
No Man's Sky is an action-adventure survival video game developed and published by the indie studio Hello Games.
23 No Man's Sky alternatives
Cost / License
Paid
Proprietary
Application typeApplication types
Open World Game
Adventure Game
Origin
United Kingdom
Platforms
Windows
Steam
GOG.com
Playstation
Nintendo Switch
Xbox
United Kingdom
+8
Good alternative?Is No Man's Sky a good alternative to Space Engine?

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1comment
No Man's Sky vs Space Engine Comments
Positive comment by Guest · Aug 15, 2017
You can explore all the planets you want and the concept is very similar to Space Engine, albeit unrealistic (no gas giants, no tidally locked planets etc. it's more "fantasy" than Space Engine).
1 of 1 comments
No Man's Sky is Paid and ProprietarySpace Engine is also Paid and Proprietary
No Man's Sky is an Open World Game Space Engine is a Star Map
Starfield
2 likes
Starfield is the first new universe in 25 years from Bethesda Game Studios, the award-winning creators of The Elder Scrolls V: Skyrim and Fallout 4. In this next generation role-playing game set amongst the stars, embark on an epic journey to answer humanity’s greatest mystery.
Cost / License
Paid
Proprietary
Application typeApplication types
Open World Game
Role-playing Game
Origin
United States
Platforms
Windows
Steam
Xbox
United States
+3
Good alternative?Is Starfield a good alternative to Space Engine?

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1comment
Starfield vs Space Engine Comments
Negative comment by bugmenot · Jan 29, 2026
Starfield is an RPG with space as background, not space simulation
1 of 1 comments
Starfield is Paid and ProprietarySpace Engine is also Paid and Proprietary
Starfield is an Open World Game Space Engine is a Star Map
TerraGenesis
5 likes
Engage in space exploration and terraform new worlds in this fun and exciting planet building simulator rooted in real science. TerraGenesis dynamically animates entire planets with changing biospheres, all based on real data from NASA.
Cost / License
Freemium
Proprietary
Application type
Open World Game
Origin
United States
Platforms
Android
iPhone
Android Tablet
iPad
United States
+2
Good alternative?Is TerraGenesis a good alternative to Space Engine?

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1comment
TerraGenesis vs Space Engine Comments
Negative comment by Guest · Nov 5, 2025
You can't terraform Jupiter, Saturn, Uranus, and Neptune.
1 of 1 comments
TerraGenesis is Freemium and ProprietarySpace Engine is Paid and Proprietary
TerraGenesis is an Open World Game Space Engine is a Star Map

3 of 3 Space Engine alternatives