Best Aliens Games on Steam (for Mac OS)
Steam currently has 2,649 Aliens games, but not all of them are able to be played on Mac. 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. Aliens game rankings were last updated on 3/21/2025.
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1. Subnautica
Descend into the depths of an alien underwater world filled with wonder and peril. Craft equipment, pilot submarines and out-smart wildlife to explore lush coral reefs, volcanoes, cave systems, and more - all while trying to survive.
Subnautica holds the #1 spot for "best Mac OS Aliens game on Steam" with a Player Score of 96. Its score was calculated by analyzing a total of 308,368 reviews on Steam. This breaks down to a total of 299,193 positive reviews and 9,175 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.
| Steam Price | $29.99 |
| Release Date | 1/23/2018 |
| Franchise | Unknown Worlds |
| Developer | Unknown Worlds Entertainment |
| Publisher | Unknown Worlds Entertainment |
| Steam App Id | 264710 |
2. Half-Life
Named Game of the Year by over 50 publications, Valve's debut title blends action and adventure with award-winning technology to create a frighteningly realistic world where players must think to survive. Also includes an exciting multiplayer mode that allows you to play against friends and enemies around the world.
Half-Life has achieved a Player Score of 95, placing it in the #2 spot for the best Mac OS Aliens games. Its score was calculated by analyzing a total of 146,203 reviews on Steam. This breaks down to a total of 141,153 positive reviews and 5,050 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. Valve has also verified it as playable on the Steam Deck and will run well.
3. Loddlenaut
Play as an interstellar custodian sent to clean up a polluted ocean planet. Pick up trash, explore the vibrant waters, and take care of axolotl-like alien creatures!
Loddlenaut has achieved a Player Score of 94, placing it in the #3 spot for the best Mac OS Aliens games. Its score was calculated by analyzing a total of 4,002 reviews on Steam. This breaks down to a total of 3,926 positive reviews and 76 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $19.99 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.
| Steam Price | $19.99 |
| Release Date | 11/16/2023 |
| Franchise | Secret Mode |
| Developer | Moon Lagoon |
| Publisher | Secret Mode |
| Steam App Id | 1644940 |
4. Half-Life: Opposing Force
Return to the Black Mesa Research Facility as one of the military specialists assigned to eliminate Gordon Freeman. Experience an entirely new episode of single player action. Meet fierce alien opponents, and experiment with new weaponry. Named 'Game of the Year' by the Academy of Interactive Arts and Sciences.
Half-Life: Opposing Force has achieved a Player Score of 93, placing it in the #4 spot for the best Mac OS Aliens games. Its score was calculated by analyzing a total of 25,105 reviews on Steam. This breaks down to a total of 23,926 positive reviews and 1,179 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $4.99 to play and can be played and ran on Windows, Mac, and Linux systems. At the moment, it is possible to play Half-Life: Opposing Force on the Steam Deck (though some functionality may be limited).
| Steam Price | $4.99 |
| Release Date | 11/1/1999 |
| Franchise | Half-Life |
| Developer | Gearbox Software |
| Publisher | Valve |
| Steam App Id | 50 |
5. Bit Blaster XL
Bit Blaster XL is a fast-paced, retro arcade shoot 'em up (shmup) inspired by the classic quarter-munchers of the ‘80s. Easy to pick up, hard to put down—boost, dodge, shoot, and chase high scores in this addictive, old-school action game!
Bit Blaster XL has achieved a Player Score of 93, placing it in the #5 spot for the best Mac OS Aliens games. Its score was calculated by analyzing a total of 6,133 reviews on Steam. This breaks down to a total of 5,916 positive reviews and 217 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $0.99 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 | $0.99 |
| Release Date | 1/22/2016 |
| Developer | Adamvision Studios |
| Publisher | Adamvision Studios |
| Steam App Id | 433950 |
6. Alien: Isolation
Discover the true meaning of fear in Alien: Isolation, a survival horror set in an atmosphere of constant dread and mortal danger.
Alien: Isolation has achieved a Player Score of 92, placing it in the #6 spot for the best Mac OS Aliens games. Its score was calculated by analyzing a total of 59,911 reviews on Steam. This breaks down to a total of 55,839 positive reviews and 4,072 negative reviews — making it "Very Positive" on Steam.
It is priced at $39.99 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 | $39.99 |
| Release Date | 10/6/2014 |
| Developers | |
| Publishers | |
| Steam App Id | 214490 |
7. Freedom Planet
Fight your way across the celestial world of Avalice where cats are green, motorcycles drive up walls and monster girls do most of the buttkicking! Freedom Planet is a cartoony, combat-based platform adventure that pits a spunky dragonoid and her friends against an alien attack force.
Freedom Planet has achieved a Player Score of 92, placing it in the #7 spot for the best Mac OS Aliens games. Its score was calculated by analyzing a total of 4,735 reviews on Steam. This breaks down to a total of 4,502 positive reviews and 233 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $14.99 to play and can be played and ran on Windows, Mac, and Linux systems. At the moment, there is no confirmed information regarding Steam Deck support for this game.
| Steam Price | $14.99 |
| Release Date | 7/21/2014 |
| Developer | GalaxyTrail |
| Publisher | GalaxyTrail |
| Steam App Id | 248310 |
8. Half-Life 2: Update
A completely free and extensive community-developed update for Half-Life 2 featuring beautiful lighting, countless bug fixes, and a brand new Community Commentary Mode. With Half-Life 2: Update, there’s never been a better time to revisit City 17.
Half-Life 2: Update has achieved a Player Score of 91, placing it in the #8 spot for the best Mac OS Aliens games. Its score was calculated by analyzing a total of 8,149 reviews on Steam. This breaks down to a total of 7,627 positive reviews and 522 negative reviews — making it "Very 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 Half-Life 2: Update on the Steam Deck (though some functionality may be limited).
| Release Date | 3/27/2015 |
| Developers | |
| Publisher | Filip Victor |
| Steam App Id | 290930 |
9. Half-Life: Blue Shift
Made by Gearbox Software and originally released in 2001 as an add-on to Half-Life, Blue Shift is a return to the Black Mesa Research Facility in which you play as Barney Calhoun, the security guard sidekick who helped Gordon out of so many sticky situations.
Half-Life: Blue Shift has achieved a Player Score of 90, placing it in the #9 spot for the best Mac OS Aliens games. Its score was calculated by analyzing a total of 18,464 reviews on Steam. This breaks down to a total of 17,071 positive reviews and 1,393 negative reviews — making it "Very Positive" on Steam.
It is priced at $4.99 to play and can be played and ran on Windows, Mac, and Linux systems. At the moment, it is possible to play Half-Life: Blue Shift on the Steam Deck (though some functionality may be limited).
| Steam Price | $4.99 |
| Release Date | 6/1/2001 |
| Franchise | Half-Life |
| Developer | Gearbox Software |
| Publisher | Valve |
| Steam App Id | 130 |
10. The Symbiant
The Symbiant is a BL / Yaoi / Gay visual novel about two men, both from vastly different worlds, embracing their sexuality and their newfound romance. It is also a tale of interstellar friendship and being gay in space!
The Symbiant has achieved a Player Score of 90, placing it in the #10 spot for the best Mac OS Aliens games. Its score was calculated by analyzing a total of 727 reviews on Steam. This breaks down to a total of 702 positive reviews and 25 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $19.99 to play and can be played and ran on Windows, Mac, and Linux systems. At the moment, it is possible to play The Symbiant on the Steam Deck (though some functionality may be limited).
| Steam Price | $19.99 |
| Release Date | 2/2/2023 |
| Franchise | HeartCoreDev |
| Developer | HeartCoreDev |
| Publisher | HeartCoreDev |
| Steam App Id | 1883090 |
More Aliens Mac Games on Steam
Explore even more rankings for the 10 best Aliens games available on Steam.
| Image | Name | Actions | ||||
|---|---|---|---|---|---|---|
| 4,605 | 1/23/2018 | 96 | $29.99 | Steam Charts | |
| 1,096 | 11/19/1998 | 95 | $9.99 | Steam Charts | |
| 24 | 11/16/2023 | 94 | $19.99 | Steam Charts | |
| 122 | 11/1/1999 | 93 | $4.99 | Steam Charts | |
| 2 | 1/22/2016 | 93 | $0.99 | Steam Charts | |
| 218 | 10/6/2014 | 92 | $39.99 | Steam Charts | |
| 2 | 7/21/2014 | 92 | $14.99 | Steam Charts | |
| 44 | 3/27/2015 | 91 | Free | Steam Charts | |
| 44 | 6/1/2001 | 90 | $4.99 | Steam Charts | |
| 3 | 2/2/2023 | 90 | $19.99 | 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, March 21). Steam Store. Steam Store.
- Valve Corporation. (2025, March 21). Subnautica on Steam. Steam Store.
- Valve Corporation. (2025, March 21). Half-Life on Steam. Steam Store.
- Valve Corporation. (2025, March 21). Loddlenaut on Steam. Steam Store.
- Valve Corporation. (2025, March 21). Half-Life: Opposing Force on Steam. Steam Store.
- Valve Corporation. (2025, March 20). Bit Blaster XL on Steam. Steam Store.
- Valve Corporation. (2025, March 5). Alien: Isolation on Steam. Steam Store.
- Valve Corporation. (2025, February 22). Freedom Planet on Steam. Steam Store.
- Valve Corporation. (2024, November 21). Half-Life 2: Update on Steam. Steam Store.
- Valve Corporation. (2025, March 21). Half-Life: Blue Shift on Steam. Steam Store.
- Valve Corporation. (2025, March 20). The Symbiant on Steam. Steam Store.