Best Aliens Games on Steam (for Mac OS)
Steam currently has 2,590 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 2/19/2025.
Looking for more? Explore other lists such as:
- Best aliens games on Steam
- Best aliens Steam Deck games
- Best aliens Linux games on Steam
- Free aliens games on Steam
- Free Steam games
- Most played Steam games
- Best rated Steam games
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 304,863 reviews on Steam. This breaks down to a total of 295,743 positive reviews and 9,120 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 144,933 reviews on Steam. This breaks down to a total of 139,930 positive reviews and 5,003 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 3,831 reviews on Steam. This breaks down to a total of 3,755 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 24,856 reviews on Steam. This breaks down to a total of 23,681 positive reviews and 1,175 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. 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 #5 spot for the best Mac OS Aliens games. Its score was calculated by analyzing a total of 59,579 reviews on Steam. This breaks down to a total of 55,523 positive reviews and 4,056 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 |
6. 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 #6 spot for the best Mac OS Aliens games. Its score was calculated by analyzing a total of 4,725 reviews on Steam. This breaks down to a total of 4,492 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 |
7. 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 #7 spot for the best Mac OS Aliens games. Its score was calculated by analyzing a total of 8,100 reviews on Steam. This breaks down to a total of 7,581 positive reviews and 519 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 |
8. 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 #8 spot for the best Mac OS Aliens games. Its score was calculated by analyzing a total of 18,294 reviews on Steam. This breaks down to a total of 16,918 positive reviews and 1,376 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 |
9. 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 #9 spot for the best Mac OS Aliens games. Its score was calculated by analyzing a total of 705 reviews on Steam. This breaks down to a total of 681 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, 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 |
10. Dome Keeper
Defend against waves of alien attackers in this innovative roguelike survival miner. Dig for resources and choose from powerful upgrade paths. Is there enough time to mine a little deeper and get back to defend before the monsters attack your dome?
Dome Keeper 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 15,159 reviews on Steam. This breaks down to a total of 13,961 positive reviews and 1,198 negative reviews — making it "Very Positive" on Steam.
It is priced at $8.99 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 | $8.99 |
| Release Date | 9/27/2022 |
| Franchise | Bippinbits |
| Developer | Bippinbits |
| Publisher | Raw Fury |
| Steam App Id | 1637320 |
More Aliens Mac Games on Steam
Explore even more rankings for the 10 best Aliens games available on Steam.
| Image | Name | Actions | ||||
|---|---|---|---|---|---|---|
| 4,548 | 1/23/2018 | 96 | $29.99 | Steam Charts | |
| 743 | 11/19/1998 | 95 | $9.99 | Steam Charts | |
| 21 | 11/16/2023 | 94 | $19.99 | Steam Charts | |
| 88 | 11/1/1999 | 93 | $4.99 | Steam Charts | |
| 151 | 10/6/2014 | 92 | $39.99 | Steam Charts | |
| 1 | 7/21/2014 | 92 | $14.99 | Steam Charts | |
| 46 | 3/27/2015 | 91 | Free | Steam Charts | |
| 26 | 6/1/2001 | 90 | $4.99 | Steam Charts | |
| 6 | 2/2/2023 | 90 | $19.99 | Steam Charts | |
| 856 | 9/27/2022 | 90 | $8.99 | 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, February 19). Steam Store. Steam Store.
- Valve Corporation. (2025, February 19). Subnautica on Steam. Steam Store.
- Valve Corporation. (2025, February 19). Half-Life on Steam. Steam Store.
- Valve Corporation. (2025, February 19). Loddlenaut on Steam. Steam Store.
- Valve Corporation. (2025, February 19). Half-Life: Opposing Force on Steam. Steam Store.
- Valve Corporation. (2025, January 30). Alien: Isolation on Steam. Steam Store.
- Valve Corporation. (2025, January 3). Freedom Planet on Steam. Steam Store.
- Valve Corporation. (2024, November 21). Half-Life 2: Update on Steam. Steam Store.
- Valve Corporation. (2025, February 19). Half-Life: Blue Shift on Steam. Steam Store.
- Valve Corporation. (2025, February 21). The Symbiant on Steam. Steam Store.
- Valve Corporation. (2025, February 21). Dome Keeper on Steam. Steam Store.