Best Aliens Games on Steam

Steam currently has 2,093 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 5/24/2024.

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 88,674 reviews on Steam. This breaks down to a total of 87,215 positive reviews and 1,459 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 Half-Life
Developer Valve
Publisher Valve
Steam App Id 546560

2. 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 #2 spot for the best Aliens games. Its score was calculated by analyzing a total of 396,225 reviews on Steam. This breaks down to a total of 386,235 positive reviews and 9,990 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

3. Half-Life 2

1998. HALF-LIFE sends a shock through the game industry with its combination of pounding action and continuous, immersive storytelling. Valve's debut title wins more than 50 game-of-the-year awards on its way to being named "Best PC Game Ever" by PC Gamer, and launches a franchise with more than eight million retail units sold worldwide.

Half-Life 2 banner

Half-Life 2 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 192,156 reviews on Steam. This breaks down to a total of 187,571 positive reviews and 4,585 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 11/16/2004
Franchise Half-Life
Developer Valve
Publisher Valve
Steam App Id 220

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 23,185 reviews on Steam. This breaks down to a total of 22,802 positive reviews and 383 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 270,016 reviews on Steam. This breaks down to a total of 261,467 positive reviews and 8,549 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 1/24/2018
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 96, placing it in the #6 spot for the best Aliens games. Its score was calculated by analyzing a total of 75,360 reviews on Steam. This breaks down to a total of 73,294 positive reviews and 2,066 negative reviews — making it "Overwhelmingly Positive" on Steam.

It is priced at $3.74 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 $3.74
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 126,777 reviews on Steam. This breaks down to a total of 122,466 positive reviews and 4,311 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 11/8/1998
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 39,678 reviews on Steam. This breaks down to a total of 38,515 positive reviews and 1,163 negative reviews — making it "Overwhelmingly Positive" on Steam.

It is priced at $7.99 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 $7.99
Release Date 10/10/2007
Franchise Half-Life
Developer Valve
Publisher Valve
Steam App Id 420

9. 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 #9 spot for the best Aliens games. Its score was calculated by analyzing a total of 5,756 reviews on Steam. This breaks down to a total of 5,638 positive reviews and 118 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

10. The Planet Crafter

A space survival open world terraforming crafting game, designed for 1 to 10 players. Alter the ecosystem of an inhospitable planet to render it habitable for humanity. Survive, gather resources, and build your base. Then, generate oxygen, warmth, and pressure to create a brand new biosphere.

The Planet Crafter banner

The Planet Crafter 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 34,128 reviews on Steam. This breaks down to a total of 32,806 positive reviews and 1,322 negative reviews — making it "Overwhelmingly Positive" on Steam.

It is priced at $16.79 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 $16.79
Release Date 4/10/2024
Developer Miju Games
Publisher Miju Games
Steam App Id 1284190

More Aliens Games

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

ImageName
Actions
Half-Life: Alyx steam charts
318
3/23/2020
97
$59.99
Steam Charts
Lethal Company steam charts
12,096
10/23/2023
96
$9.99
Steam Charts
Half-Life 2 steam charts
711
11/16/2004
96
$9.99
Steam Charts
Entropy : Zero 2 steam charts
126
8/20/2022
96
Free
Steam Charts
Subnautica steam charts
3,330
1/24/2018
96
$29.99
Steam Charts
Brotato steam charts
2,114
6/23/2023
96
$3.74
Steam Charts
Half-Life steam charts
795
11/8/1998
95
$9.99
Steam Charts
Half-Life 2: Episode Two steam charts
196
10/10/2007
95
$7.99
Steam Charts
Half-Life 2: VR Mod steam charts
39
9/16/2022
94
Free
Steam Charts
The Planet Crafter steam charts
6,205
4/10/2024
94
$16.79
Steam Charts
Black Mesa steam charts
587
3/6/2020
94
$19.99
Steam Charts
Half-Life 2: Episode One steam charts
128
6/1/2006
94
$7.99
Steam Charts
Duke Nukem 3D: Megaton Edition steam charts
7
???
93
???
Steam Charts
Abiotic Factor steam charts
4,935
5/2/2024
93
$24.99
Steam Charts
South Scrimshaw, Part One steam charts
1
6/9/2023
93
Free
Steam Charts
Insaniquarium Deluxe steam charts
75
8/30/2006
93
$4.99
Steam Charts
Picayune Dreams steam charts
34
12/4/2023
93
$4.99
Steam Charts
Half-Life: Opposing Force steam charts
99
11/1/1999
93
$4.99
Steam Charts
Alien Swarm: Reactive Drop steam charts
150
4/20/2017
93
Free
Steam Charts
XCOM: Enemy Unknown steam charts
826
10/9/2012
93
$1.49
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, May 24). Steam Store. Steam Store.
  • Valve Corporation. (2024, May 24). Half-Life: Alyx on Steam. Steam Store.
  • Valve Corporation. (2024, May 26). Lethal Company on Steam. Steam Store.
  • Valve Corporation. (2024, May 24). Half-Life 2 on Steam. Steam Store.
  • Valve Corporation. (2024, April 3). Entropy : Zero 2 on Steam. Steam Store.
  • Valve Corporation. (2024, May 26). Subnautica on Steam. Steam Store.
  • Valve Corporation. (2024, May 26). Brotato on Steam. Steam Store.
  • Valve Corporation. (2024, May 23). Half-Life on Steam. Steam Store.
  • Valve Corporation. (2024, May 24). Half-Life 2: Episode Two on Steam. Steam Store.
  • Valve Corporation. (2024, May 5). Half-Life 2: VR Mod on Steam. Steam Store.
  • Valve Corporation. (2024, May 27). The Planet Crafter on Steam. Steam Store.

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