Best Space Sim Games on Steam
Steam currently has 953 Space Sim games available to download and play. Explore our list of the best picks ranked by Player Score. Our Player Score rankings are calculated directly from reviews left on the Steam store and will be updated in real-time as more players leave their feedback. Space Sim game rankings were last updated on 4/25/2024.
Looking for more? Explore other lists such as:
- Free space sim games on Steam
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1. Dyson Sphere Program
Build the most efficient intergalactic factory in space simulation strategy game Dyson Sphere Program! Harness the power of stars, collect resources, plan and design production lines and develop your interstellar factory from a small space workshop to a galaxy-wide industrial empire.
Dyson Sphere Program holds the #1 spot for "best Space Sim game on Steam" with a Player Score of 96. Its score was calculated by analyzing a total of 78,655 reviews on Steam. This breaks down to a total of 76,844 positive reviews and 1,811 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $19.99 to play and can be played and ran on Windows systems. At the moment, it is possible to play Dyson Sphere Program on the Steam Deck (though some functionality may be limited).
| Steam Price | $19.99 |
| Release Date | 1/20/2021 |
| Developer | Youthcat Studio |
| Publisher | Gamera Games |
| Steam App Id | 1366540 |
2. Oxygen Not Included
Oxygen Not Included is a space-colony simulation game. Deep inside an alien space rock your industrious crew will need to master science, overcome strange new lifeforms, and harness incredible space tech to survive, and possibly, thrive.
Oxygen Not Included has achieved a Player Score of 95, placing it in the #2 spot for the best Space Sim games. Its score was calculated by analyzing a total of 114,208 reviews on Steam. This breaks down to a total of 110,472 positive reviews and 3,736 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $24.99 to play and can be played and ran on Windows, Mac, and Linux systems. Valve has also verified it as playable on the Steam Deck and will run well.
| Steam Price | $24.99 |
| Release Date | 7/30/2019 |
| Franchise | Klei |
| Developer | Klei Entertainment |
| Publisher | Klei Entertainment |
| Steam App Id | 457140 |
3. Universe Sandbox
Create & destroy on an unimaginable scale with a realistic physics-based space simulator. Explore the beauty of our universe and the fragility of our planet. Use science to bend the laws of gravity, collide planets, boil away oceans, fire epic space lasers, and customize your universe. VR optional.
Universe Sandbox has achieved a Player Score of 94, placing it in the #3 spot for the best Space Sim games. Its score was calculated by analyzing a total of 23,626 reviews on Steam. This breaks down to a total of 22,742 positive reviews and 884 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $29.99 to play and can be played and ran on both Windows and Mac systems. At the moment, it is possible to play Universe Sandbox on the Steam Deck (though some functionality may be limited).
| Steam Price | $29.99 |
| Release Date | 8/24/2015 |
| Developer | Giant Army |
| Publisher | Giant Army |
| Steam App Id | 230290 |
4. Kerbal Space Program
In Kerbal Space Program, take charge of the space program for the alien race known as the Kerbals. You have access to an array of parts to assemble fully-functional spacecraft that flies (or doesn’t) based on realistic aerodynamic and orbital physics.
Kerbal Space Program has achieved a Player Score of 94, placing it in the #4 spot for the best Space Sim games. Its score was calculated by analyzing a total of 120,659 reviews on Steam. This breaks down to a total of 114,608 positive reviews and 6,051 negative reviews — making it "Very Positive" on Steam.
It is priced at $9.99 to play and can be played and ran on Windows, Mac, and Linux systems. At the moment, it is possible to play Kerbal Space Program on the Steam Deck (though some functionality may be limited).
| Steam Price | $9.99 |
| Release Date | 4/27/2015 |
| Franchise | Private Division |
| Developer | Squad |
| Publisher | Private Division |
| Steam App Id | 220200 |
5. SpaceEngine
The world's first science-based photorealistic interactive 3D planetarium that models the entire Universe, using procedural generation for uncharted areas.
SpaceEngine has achieved a Player Score of 93, placing it in the #5 spot for the best Space Sim games. Its score was calculated by analyzing a total of 10,168 reviews on Steam. This breaks down to a total of 9,745 positive reviews and 423 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $29.99 to play and can be played and ran on Windows systems. At the moment, it is not possible to play or run SpaceEngine on the Steam Deck.
| Steam Price | $29.99 |
| Release Date | 6/11/2019 |
| Developer | Cosmographic Software |
| Publisher | Cosmographic Software |
| Steam App Id | 314650 |
6. Spaceflight Simulator
In Spaceflight Simulator, you will get to build your rockets, plan launches and flights, attempt landings, deploy payloads and explore new worlds.
Spaceflight Simulator has achieved a Player Score of 92, placing it in the #6 spot for the best Space Sim games. Its score was calculated by analyzing a total of 4,689 reviews on Steam. This breaks down to a total of 4,501 positive reviews and 188 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $11.99 to play and can be played and ran on both Windows and Mac systems. At the moment, it is possible to play Spaceflight Simulator on the Steam Deck (though some functionality may be limited).
| Steam Price | $11.99 |
| Release Date | 2/18/2022 |
| Developer | Stefo Mai Morojna |
| Publisher | Stefo Mai Morojna |
| Steam App Id | 1718870 |
7. Cosmoteer: Starship Architect & Commander
Design and simulate the starship of your dreams! Command it in epic battles and manage your crew while exploring a dangerous galaxy. Play alone or with friends, test your ship in online PvP, and let your imagination reach for the stars!
Cosmoteer: Starship Architect & Commander has achieved a Player Score of 92, placing it in the #7 spot for the best Space Sim games. Its score was calculated by analyzing a total of 9,093 reviews on Steam. This breaks down to a total of 8,661 positive reviews and 432 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $19.99 to play and can be played and ran on Windows systems. At the moment, it is possible to play Cosmoteer: Starship Architect & Commander on the Steam Deck (though some functionality may be limited).
| Steam Price | $19.99 |
| Release Date | 10/24/2022 |
| Developer | Walternate Realities |
| Publisher | Walternate Realities |
| Steam App Id | 799600 |
8. Dune: Imperium
The award-winning board game of strategy and intrigue in the iconic universe of Dune. The Spice must flow.
Dune: Imperium has achieved a Player Score of 91, placing it in the #8 spot for the best Space Sim games. Its score was calculated by analyzing a total of 1,583 reviews on Steam. This breaks down to a total of 1,524 positive reviews and 59 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $22.99 to play and can be played and ran on both Windows and Mac systems. Valve has also verified it as playable on the Steam Deck and will run well.
9. Mars First Logistics
Build physically simulated rovers and transport awkwardly shaped cargo across the surface of Mars. Earn funds, unlock new parts, and use your ingenuity to help the martians establish a new home. Playable solo or in online co-op!
Mars First Logistics has achieved a Player Score of 91, placing it in the #9 spot for the best Space Sim games. Its score was calculated by analyzing a total of 843 reviews on Steam. This breaks down to a total of 819 positive reviews and 24 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $19.99 to play and can be played and ran on Windows systems. Valve has also verified it as playable on the Steam Deck and will run well.
| Steam Price | $19.99 |
| Release Date | 6/22/2023 |
| Developer | Shape Shop |
| Publishers | |
| Steam App Id | 1532200 |
10. Sins of a Solar Empire®: Rebellion
Command a space-faring empire in Sins of a Solar Empire: Rebellion, the new stand-alone expansion that combines 4X depth with real-time strategy gameplay.
Sins of a Solar Empire®: Rebellion has achieved a Player Score of 91, placing it in the #10 spot for the best Space Sim games. Its score was calculated by analyzing a total of 15,523 reviews on Steam. This breaks down to a total of 14,470 positive reviews and 1,053 negative reviews — making it "Very Positive" on Steam.
It is priced at $39.99 to play and can be played and ran on Windows systems. At the moment, it is not possible to play or run Sins of a Solar Empire®: Rebellion on the Steam Deck.
| Steam Price | $39.99 |
| Release Date | 6/12/2012 |
| Developers | |
| Publisher | Stardock Entertainment |
| Steam App Id | 204880 |
More Space Sim Games
Explore even more rankings for the 100 best Space Sim games available on Steam.
| Image | Name | Actions | ||||
|---|---|---|---|---|---|---|
 | 2,711 | 1/20/2021 | 96 | $19.99 | Steam Charts | |
 | 5,965 | 7/30/2019 | 95 | $24.99 | Steam Charts | |
 | 225 | 8/24/2015 | 94 | $29.99 | Steam Charts | |
 | 1,900 | 4/27/2015 | 94 | $9.99 | Steam Charts | |
 | 152 | 6/11/2019 | 93 | $29.99 | Steam Charts | |
 | 129 | 2/18/2022 | 92 | $11.99 | Steam Charts | |
 | 582 | 10/24/2022 | 92 | $19.99 | Steam Charts | |
 | 286 | 3/13/2024 | 91 | $22.99 | Steam Charts | |
 | 17 | 6/22/2023 | 91 | $19.99 | Steam Charts | |
 | 569 | 6/12/2012 | 91 | $39.99 | Steam Charts | |
 | 23 | 11/15/2018 | 90 | $29.99 | Steam Charts | |
 | 102 | 7/21/2023 | 89 | $9.99 | Steam Charts | |
 | 60 | 10/30/2015 | 89 | Free | Steam Charts | |
 | 1 | 9/13/2017 | 89 | $14.99 | Steam Charts | |
 | 1 | 7/28/2014 | 88 | $14.99 | Steam Charts | |
 | 40 | 12/15/2011 | 88 | $9.99 | Steam Charts | |
 | 1 | 8/21/2020 | 88 | Free | Steam Charts | |
 | 1 | 6/15/2016 | 88 | $2.99 | Steam Charts | |
 | 706 | 3/9/2020 | 88 | $24.99 | Steam Charts | |
 | 2 | 7/15/2022 | 88 | $9.99 | Steam Charts |
Soures & References
Steambase has best-in-class data powered directly by Steam, our data partners, and in-house experts. Reviews and rankings are enriched, analyzed, and updated in real-time to ensure we surface the most up-to-date insights. Learn more about the Steambase approach to data collection and our review methodology.
- Valve Corporation. (2024, April 25). Steam Store. Steam Store.
- Valve Corporation. (2024, April 25). Dyson Sphere Program on Steam. Steam Store.
- Valve Corporation. (2024, May 8). Oxygen Not Included on Steam. Steam Store.
- Valve Corporation. (2024, May 8). Universe Sandbox on Steam. Steam Store.
- Valve Corporation. (2024, April 15). Kerbal Space Program on Steam. Steam Store.
- Valve Corporation. (2024, April 18). SpaceEngine on Steam. Steam Store.
- Valve Corporation. (2024, May 8). Spaceflight Simulator on Steam. Steam Store.
- Valve Corporation. (2024, May 6). Cosmoteer: Starship Architect & Commander on Steam. Steam Store.
- Valve Corporation. (2024, May 8). Dune: Imperium on Steam. Steam Store.
- Valve Corporation. (2024, May 7). Mars First Logistics on Steam. Steam Store.
- Valve Corporation. (2024, May 7). Sins of a Solar Empire®: Rebellion on Steam. Steam Store.