Best Aliens Games on Steam

Steam currently has 2,491 Aliens 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. Aliens game rankings were last updated on 12/5/2024.

Looking for more? Explore other lists such as:

1. Half-Life: Alyx

Half-Life: Alyx is Valve’s VR return to the Half-Life series. It’s the story of an impossible fight against a vicious alien race known as the Combine, set between the events of Half-Life and Half-Life 2. Playing as Alyx Vance, you are humanity’s only chance for survival.

Half-Life: Alyx banner

Half-Life: Alyx holds the #1 spot for "best Aliens game on Steam" with a Player Score of 97. Its score was calculated by analyzing a total of 93,434 reviews on Steam. This breaks down to a total of 91,852 positive reviews and 1,582 negative reviews — making it "Overwhelmingly Positive" on Steam.

It is priced at $59.99 to play and can be played and ran on Windows systems. At the moment, it is not possible to play or run Half-Life: Alyx on the Steam Deck.

Steam Price $59.99
Release Date 3/23/2020
Franchise Valve
Developer Valve
Publisher Valve
Steam App Id 546560

2. Half-Life 2

Reawakened from stasis in the occupied metropolis of City 17, Gordon Freeman is joined by Alyx Vance as he leads a desperate human resistance. Experience the landmark first-person shooter packed with immersive world-building, boundary-pushing physics, and exhilarating combat.

Half-Life 2 banner

Half-Life 2 has achieved a Player Score of 96, placing it in the #2 spot for the best Aliens games. Its score was calculated by analyzing a total of 226,314 reviews on Steam. This breaks down to a total of 220,863 positive reviews and 5,451 negative reviews — making it "Overwhelmingly Positive" on Steam.

It is priced at $9.99 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.

Steam Price $9.99
Release Date 11/16/2004
Franchise Half-Life
Developer Valve
Publisher Valve
Steam App Id 220

3. Lethal Company

A co-op horror about scavenging at abandoned moons to sell scrap to the Company.

Lethal Company banner

Lethal Company has achieved a Player Score of 96, placing it in the #3 spot for the best Aliens games. Its score was calculated by analyzing a total of 456,828 reviews on Steam. This breaks down to a total of 444,545 positive reviews and 12,283 negative reviews — making it "Overwhelmingly Positive" on Steam.

It is priced at $9.99 to play and can be played and ran on Windows systems. At the moment, it is possible to play Lethal Company on the Steam Deck (though some functionality may be limited).

Steam Price $9.99
Release Date 10/23/2023
Developer Zeekerss
Publisher Zeekerss
Steam App Id 1966720

4. Entropy : Zero 2

Bad Cop is back. Command a small army of Combine synths and soldiers on a Northern campaign to capture Dr. Judith Mossman. A modification for Half-Life 2.

Entropy : Zero 2 banner

Entropy : Zero 2 has achieved a Player Score of 96, placing it in the #4 spot for the best Aliens games. Its score was calculated by analyzing a total of 26,437 reviews on Steam. This breaks down to a total of 25,988 positive reviews and 449 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. At the moment, it is possible to play Entropy : Zero 2 on the Steam Deck (though some functionality may be limited).

Release Date 8/20/2022
Developer Breadmen
Publisher Breadman
Steam App Id 1583720

5. 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 banner

Subnautica has achieved a Player Score of 96, placing it in the #5 spot for the best Aliens games. Its score was calculated by analyzing a total of 294,236 reviews on Steam. This breaks down to a total of 285,303 positive reviews and 8,933 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

6. Brotato

Brotato is a top-down arena shooter roguelite where you play a potato wielding up to 6 weapons at a time to fight off hordes of aliens. Choose from a variety of traits and items to create unique builds and survive until help arrives.

Brotato banner

Brotato has achieved a Player Score of 95, placing it in the #6 spot for the best Aliens games. Its score was calculated by analyzing a total of 89,036 reviews on Steam. This breaks down to a total of 86,185 positive reviews and 2,851 negative reviews — making it "Overwhelmingly Positive" on Steam.

It is priced at $2.99 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 $2.99
Release Date 6/23/2023
Franchise Blobfish Games
Developer Blobfish
Publisher Blobfish
Steam App Id 1942280

7. 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 banner

Half-Life has achieved a Player Score of 95, placing it in the #7 spot for the best Aliens games. Its score was calculated by analyzing a total of 141,517 reviews on Steam. This breaks down to a total of 136,655 positive reviews and 4,862 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.

Steam Price $9.99
Release Date 11/19/1998
Franchise Half-Life
Developer Valve
Publisher Valve
Steam App Id 70

8. Half-Life 2: Episode Two

Half-Life® 2: Episode Two is the second in a trilogy of new games created by Valve that extends the award-winning and best-selling Half-Life® adventure. As Dr. Gordon Freeman, you were last seen exiting City 17 with Alyx Vance as the Citadel erupted amidst a storm of unknown proportions.

Half-Life 2: Episode Two banner

Half-Life 2: Episode Two has achieved a Player Score of 95, placing it in the #8 spot for the best Aliens games. Its score was calculated by analyzing a total of 42,018 reviews on Steam. This breaks down to a total of 40,780 positive reviews and 1,238 negative reviews — making it "Overwhelmingly Positive" on Steam.

It is priced at $0.00 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 10/10/2007
Franchise Half-Life
Developer Valve
Publisher Valve
Steam App Id 420

9. 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 banner

Abiotic Factor has achieved a Player Score of 94, placing it in the #9 spot for the best Aliens games. Its score was calculated by analyzing a total of 23,501 reviews on Steam. This breaks down to a total of 22,721 positive reviews and 780 negative reviews — making it "Overwhelmingly Positive" on Steam.

It is priced at $24.99 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 $24.99
Release Date 5/2/2024
Franchise Playstack
Developer Deep Field Games
Publishers
Steam App Id 427410

10. Half-Life 2: VR Mod

Half Life 2: VR Mod is a fan-made project, which adds full Virtual Reality support to the original 2004 PC gaming classic by Valve Software. Are you ready to become the Freeman?

Half-Life 2: VR Mod banner

Half-Life 2: VR Mod has achieved a Player Score of 94, placing it in the #10 spot for the best Aliens games. Its score was calculated by analyzing a total of 6,395 reviews on Steam. This breaks down to a total of 6,254 positive reviews and 141 negative reviews — making it "Overwhelmingly Positive" on Steam.

It is completely free to play and can be played and ran on Windows systems. At the moment, it is not possible to play or run Half-Life 2: VR Mod on the Steam Deck.

Release Date 9/16/2022
Developer Source VR Mod Team
Publishers
Steam App Id 658920

More Aliens Games

Explore even more rankings for the 100 best Aliens games available on Steam.

ImageName
Actions
Half-Life: Alyx steam charts
760
3/23/2020
97
$59.99
Steam Charts
Half-Life 2 steam charts
9,507
11/16/2004
96
$9.99
Steam Charts
Lethal Company steam charts
17,683
10/23/2023
96
$9.99
Steam Charts
Entropy : Zero 2 steam charts
356
8/20/2022
96
Free
Steam Charts
Subnautica steam charts
6,623
1/23/2018
96
$29.99
Steam Charts
Brotato steam charts
11,662
6/23/2023
95
$2.99
Steam Charts
Half-Life steam charts
1,716
11/19/1998
95
$9.99
Steam Charts
Half-Life 2: Episode Two steam charts
89
10/10/2007
95
???
Steam Charts
Abiotic Factor steam charts
2,372
5/2/2024
94
$24.99
Steam Charts
Half-Life 2: VR Mod steam charts
88
9/16/2022
94
Free
Steam Charts
The Planet Crafter steam charts
5,439
4/10/2024
94
$16.79
Steam Charts
Picayune Dreams steam charts
19
12/4/2023
94
$4.99
Steam Charts
Black Mesa steam charts
1,586
3/6/2020
94
$19.99
Steam Charts
Loddlenaut steam charts
31
11/16/2023
94
$19.99
Steam Charts
Half-Life 2: Episode One steam charts
50
6/1/2006
94
???
Steam Charts
South Scrimshaw, Part One steam charts
2
6/9/2023
94
Free
Steam Charts
Duke Nukem 3D: Megaton Edition steam charts
7
???
93
???
Steam Charts
Insaniquarium Deluxe steam charts
43
8/30/2006
93
$4.99
Steam Charts
Half-Life: Opposing Force steam charts
218
11/1/1999
93
$4.99
Steam Charts
Angel at Dusk steam charts
25
1/12/2024
93
$14.99
Steam Charts
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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, December 5). Steam Store. Steam Store.
  • Valve Corporation. (2024, December 5). Half-Life: Alyx on Steam. Steam Store.
  • Valve Corporation. (2024, December 7). Half-Life 2 on Steam. Steam Store.
  • Valve Corporation. (2024, December 14). Lethal Company on Steam. Steam Store.
  • Valve Corporation. (2024, December 14). Entropy : Zero 2 on Steam. Steam Store.
  • Valve Corporation. (2024, December 5). Subnautica on Steam. Steam Store.
  • Valve Corporation. (2024, December 15). Brotato on Steam. Steam Store.
  • Valve Corporation. (2024, December 15). Half-Life on Steam. Steam Store.
  • Valve Corporation. (2024, December 5). Half-Life 2: Episode Two on Steam. Steam Store.
  • Valve Corporation. (2024, December 13). Abiotic Factor on Steam. Steam Store.
  • Valve Corporation. (2024, November 20). Half-Life 2: VR Mod on Steam. Steam Store.

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