Best Science Games on Steam
Steam currently has 1,283 Science 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. Science game rankings were last updated on 10/3/2025.
Looking for more? Explore other lists such as:
- Free science games on Steam
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- Free Steam games
- Most played Steam games
- Best rated Steam games
1. Portal 2
The "Perpetual Testing Initiative" has been expanded to allow you to design co-op puzzles for you and your friends!
Portal 2 holds the #1 spot for "best Science game on Steam" with a Player Score of 98. Its score was calculated by analyzing a total of 442,729 reviews on Steam. This breaks down to a total of 436,947 positive reviews and 5,782 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $1.99 to play and can be played and ran on both Windows and Linux systems. Valve has also verified it as playable on the Steam Deck and will run well.
2. Portal
Portal™ is a new single player game from Valve. Set in the mysterious Aperture Science Laboratories, Portal has been called one of the most innovative new games on the horizon and will offer gamers hours of unique gameplay.
Portal has achieved a Player Score of 97, placing it in the #2 spot for the best Science games. Its score was calculated by analyzing a total of 182,920 reviews on Steam. This breaks down to a total of 180,137 positive reviews and 2,783 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $1.99 to play and can be played and ran on both Windows and Linux systems. Valve has also verified it as playable on the Steam Deck and will run well.
3. STEINS;GATE
Developed by 5pb. and Nitroplus, STEINS;GATE was awarded Famitsu magazine's coveted annual Game of Excellence award and was voted one of the most emotionally charged “tear-inducing games” ever made, in a Famitsu poll. It is a gripping and moving Visual Novel, which has already spawned manga and anime adaptations.
STEINS;GATE has achieved a Player Score of 95, placing it in the #3 spot for the best Science games. Its score was calculated by analyzing a total of 23,542 reviews on Steam. This breaks down to a total of 22,880 positive reviews and 662 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $8.99 to play and can be played and ran on Windows systems. At the moment, it is possible to play STEINS;GATE on the Steam Deck (though some functionality may be limited).
| Steam Price | $8.99 |
| Release Date | 9/8/2016 |
| Franchise | Science Adventure Series |
| Developer | MAGES. Inc. |
| Publisher | Spike Chunsoft Co., Ltd. |
| Steam App Id | 412830 |
4. WolfQuest: Anniversary Edition
Live the life of a wild wolf in a realistic ecological simulation set in Yellowstone National Park.
WolfQuest: Anniversary Edition has achieved a Player Score of 95, placing it in the #4 spot for the best Science games. Its score was calculated by analyzing a total of 11,192 reviews on Steam. This breaks down to a total of 10,936 positive reviews and 256 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. Valve has also verified it as playable on the Steam Deck and will run well.
5. 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.
Universe Sandbox has achieved a Player Score of 94, placing it in the #5 spot for the best Science games. Its score was calculated by analyzing a total of 28,580 reviews on Steam. This breaks down to a total of 27,555 positive reviews and 1,025 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $20.09 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 | $20.09 |
| Release Date | 8/24/2015 |
| Developer | Giant Army |
| Publisher | Giant Army |
| Steam App Id | 230290 |
6. Portal: Revolution
The Portal Mod you've been waiting for. Delve into a new story with original characters, spanning over 8 hours of gameplay and featuring over 40 new challenging test chambers which make use of new mechanics.
Portal: Revolution has achieved a Player Score of 94, placing it in the #6 spot for the best Science games. Its score was calculated by analyzing a total of 27,519 reviews on Steam. This breaks down to a total of 26,466 positive reviews and 1,053 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is completely free to play and can be played and ran on both Windows and Linux systems. Valve has also verified it as playable on the Steam Deck and will run well.
| Release Date | 1/6/2024 |
| Developer | Second Face Software |
| Publisher | Second Face Software |
| Steam App Id | 601360 |
7. CATO: Buttered Cat
Puzzle platformer where you control both the cat and the toast, based on the famous "Buttered Cat Paradox". The game features 200+ levels, 70+ skins, plus boss fights and mini-games!
CATO: Buttered Cat has achieved a Player Score of 94, placing it in the #7 spot for the best Science games. Its score was calculated by analyzing a total of 2,516 reviews on Steam. This breaks down to a total of 2,478 positive reviews and 38 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $8.79 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 | $8.79 |
| Release Date | 9/6/2024 |
| Franchise | GCORES PUBLISHING |
| Developer | Team Woll |
| Publisher | GCORES PUBLISHING |
| Steam App Id | 1999520 |
8. 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 #8 spot for the best Science games. Its score was calculated by analyzing a total of 129,831 reviews on Steam. This breaks down to a total of 123,568 positive reviews and 6,263 negative reviews — making it "Overwhelmingly 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 |
9. Portal Reloaded
Portal Reloaded is a free, community made modification for Portal 2. The mod builds on the concepts of the main game by allowing you to place a third portal, which enables traveling between two different timelines. Thinking in four dimensions is vital to solving 25 brand new mind-bending puzzles.
Portal Reloaded has achieved a Player Score of 94, placing it in the #9 spot for the best Science games. Its score was calculated by analyzing a total of 21,367 reviews on Steam. This breaks down to a total of 20,546 positive reviews and 821 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is completely free to play and can be played and ran on Windows, Mac, and Linux systems. At the moment, it is possible to play Portal Reloaded on the Steam Deck (though some functionality may be limited).
10. Abiotic Factor
Abiotic Factor is a survival crafting experience for 1-6 players set in the depths of an underground research facility. Caught between paranormal containment failure, a military crusade, and chaos from a dozen realms, the world’s greatest minds must survive against the universe’s biggest threats.
Abiotic Factor has achieved a Player Score of 94, placing it in the #10 spot for the best Science games. Its score was calculated by analyzing a total of 41,853 reviews on Steam. This breaks down to a total of 40,059 positive reviews and 1,794 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $27.99 to play and can be played and ran on Windows systems. At the moment, it is possible to play Abiotic Factor on the Steam Deck (though some functionality may be limited).
| Steam Price | $27.99 |
| Release Date | 7/22/2025 |
| Franchise | Playstack |
| Developer | Deep Field Games |
| Publishers | |
| Steam App Id | 427410 |
More Science Games
Explore even more rankings for the 100 best Science games available on Steam.
| Image | Name | Actions | ||||
|---|---|---|---|---|---|---|
| 1,436 | 4/18/2011 | 98 | $1.99 | Steam Charts | |
| 443 | 10/10/2007 | 97 | $1.99 | Steam Charts | |
| 298 | 9/8/2016 | 95 | $8.99 | Steam Charts | |
| 381 | 7/22/2025 | 95 | $29.99 | Steam Charts | |
| 328 | 8/24/2015 | 94 | $20.09 | Steam Charts | |
| 80 | 1/6/2024 | 94 | Free | Steam Charts | |
| 16 | 9/6/2024 | 94 | $8.79 | Steam Charts | |
| 1,499 | 4/27/2015 | 94 | $9.99 | Steam Charts | |
| 24 | 4/19/2021 | 94 | Free | Steam Charts | |
| 3,279 | 7/22/2025 | 94 | $27.99 | Steam Charts | |
 | 2,020 | 9/15/2021 | 94 | $20.99 | Steam Charts | |
 | 20 | 6/25/2015 | 94 | Free | Steam Charts | |
 | 56 | 6/14/2024 | 94 | Free | Steam Charts | |
 | 225 | 2/18/2020 | 94 | $3.74 | Steam Charts | |
 | 1 | 6/9/2023 | 94 | Free | Steam Charts | |
 | 104 | 12/11/2014 | 93 | $4.49 | Steam Charts | |
 | 194 | 6/11/2019 | 93 | $17.99 | Steam Charts | |
 | 139 | 4/11/2025 | 93 | $7.99 | Steam Charts | |
 | 118 | 5/8/2018 | 93 | $8.74 | Steam Charts | |
 | 79 | 2/18/2022 | 93 | $14.99 | 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. (2025, October 3). Steam Store. Steam Store.
- Valve Corporation. (2025, October 3). Portal 2 on Steam. Steam Store.
- Valve Corporation. (2025, September 30). Portal on Steam. Steam Store.
- Valve Corporation. (2025, September 29). STEINS;GATE on Steam. Steam Store.
- Valve Corporation. (2025, October 3). WolfQuest: Anniversary Edition on Steam. Steam Store.
- Valve Corporation. (2025, October 6). Universe Sandbox on Steam. Steam Store.
- Valve Corporation. (2025, August 15). Portal: Revolution on Steam. Steam Store.
- Valve Corporation. (2025, October 4). CATO: Buttered Cat on Steam. Steam Store.
- Valve Corporation. (2025, October 3). Kerbal Space Program on Steam. Steam Store.
- Valve Corporation. (2025, October 2). Portal Reloaded on Steam. Steam Store.
- Valve Corporation. (2025, October 5). Abiotic Factor on Steam. Steam Store.