Best Mod Linux Games on Steam

Steam currently has 223 Mod games, but not all of them are able to be played on Linux builds. 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. Mod game rankings were last updated on 5/14/2025.

Looking for more? Explore other lists such as:

1. 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 holds the #1 spot for "best Linux Mod game on Steam" with a Player Score of 96. Its score was calculated by analyzing a total of 28,917 reviews on Steam. This breaks down to a total of 28,432 positive reviews and 485 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

2. Garry's Mod

Garry's Mod is a physics sandbox. There aren't any predefined aims or goals. We give you the tools and leave you to play.

Garry's Mod banner

Garry's Mod has achieved a Player Score of 96, placing it in the #2 spot for the best Linux Mod games. Its score was calculated by analyzing a total of 1,166,193 reviews on Steam. This breaks down to a total of 1,128,895 positive reviews and 37,298 negative reviews — making it "Overwhelmingly Positive" on Steam.

It is priced at $5.99 to play and can be played and ran on Windows, Mac, and Linux systems. At the moment, it is possible to play Garry's Mod on the Steam Deck (though some functionality may be limited).

Steam Price $5.99
Release Date 11/29/2006
Developer Facepunch Studios
Publisher Valve
Steam App Id 4000

3. tModLoader

Dig, Fight, and Build your way through the world of player-created mods on Terraria with tModLoader - this DLC makes modding Terraria a reality!

tModLoader banner

tModLoader has achieved a Player Score of 96, placing it in the #3 spot for the best Linux Mod games. Its score was calculated by analyzing a total of 318,885 reviews on Steam. This breaks down to a total of 309,671 positive reviews and 9,214 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 tModLoader on the Steam Deck (though some functionality may be limited).

Release Date 5/16/2020
Developer TML Team
Publishers
Steam App Id 1281930

4. 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 banner

Portal: Revolution has achieved a Player Score of 94, placing it in the #4 spot for the best Linux Mod games. Its score was calculated by analyzing a total of 26,676 reviews on Steam. This breaks down to a total of 25,655 positive reviews and 1,021 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

5. 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 banner

Portal Reloaded has achieved a Player Score of 94, placing it in the #5 spot for the best Linux Mod games. Its score was calculated by analyzing a total of 21,134 reviews on Steam. This breaks down to a total of 20,318 positive reviews and 816 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).

Release Date 4/19/2021
Developer PORTANIS
Publisher PORTANIS
Steam App Id 1255980

6. Black Mesa

Relive Half-Life.

Black Mesa banner

Black Mesa has achieved a Player Score of 94, placing it in the #6 spot for the best Linux Mod games. Its score was calculated by analyzing a total of 130,047 reviews on Steam. This breaks down to a total of 123,720 positive reviews and 6,327 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. At the moment, it is possible to play Black Mesa on the Steam Deck (though some functionality may be limited).

Steam Price $1.99
Release Date 3/6/2020
Developer Crowbar Collective
Publisher Crowbar Collective
Steam App Id 362890

7. Portal Stories: Mel

Portal Stories: Mel is a community made, free modification for Portal 2 based in the Portal universe. It tells the story of Mel, who meets a new personality core and faces an undiscovered threat to the Aperture facility.

Portal Stories: Mel banner

Portal Stories: Mel has achieved a Player Score of 94, placing it in the #7 spot for the best Linux Mod games. Its score was calculated by analyzing a total of 22,759 reviews on Steam. This breaks down to a total of 21,866 positive reviews and 893 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, there is no confirmed information regarding Steam Deck support for this game.

Release Date 6/25/2015
Developer Prism Game Studios Ltd.
Publisher Prism Game Studios Ltd.
Steam App Id 317400

8. Downfall - A Slay the Spire Fan Expansion

A FREE complete expansion for Slay the Spire, made by the modding community. Features one brand new normal character, plus a new game mode with SEVEN fully complete new characters starring in a twisted campaign, and so much more.

Downfall - A Slay the Spire Fan Expansion banner

Downfall - A Slay the Spire Fan Expansion has achieved a Player Score of 94, placing it in the #8 spot for the best Linux Mod games. Its score was calculated by analyzing a total of 3,972 reviews on Steam. This breaks down to a total of 3,877 positive reviews and 95 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 Downfall - A Slay the Spire Fan Expansion on the Steam Deck (though some functionality may be limited).

Release Date 3/25/2022
Developer Table 9 Studio
Publisher Table 9 Studio
Steam App Id 1865780

9. Rusted Warfare - RTS

{{An RTS inspired by the classics of the past!}} Making up for it's subpar retro graphics with fun gameplay and modern multi-threaded tech enabling huge battles to run smooth... Featuring singleplayer challenges, skirmish, sandbox, 10-player multiplayer & workshop modding.

Rusted Warfare - RTS banner

Rusted Warfare - RTS has achieved a Player Score of 93, placing it in the #9 spot for the best Linux Mod games. Its score was calculated by analyzing a total of 6,340 reviews on Steam. This breaks down to a total of 6,127 positive reviews and 213 negative reviews — making it "Overwhelmingly Positive" on Steam.

It is priced at $2.99 to play and can be played and ran on Windows, Mac, and Linux systems. At the moment, it is possible to play Rusted Warfare - RTS on the Steam Deck (though some functionality may be limited).

Steam Price $2.99
Release Date 7/14/2017
Developer Corroding Games
Publisher Corroding Games
Steam App Id 647960

10. Half-Life: MMod

Half-Life 1: MMod is a free, fan made modification for Half-Life aiming to refine player's arsenal and further expand player's combat options. Featuring AI tweaks, VFX and SFX overhaul in spirit of original, additional weapon functionality and bug fixes, while keeping most changes optional.

Half-Life: MMod banner

Half-Life: MMod has achieved a Player Score of 93, placing it in the #10 spot for the best Linux Mod games. Its score was calculated by analyzing a total of 5,097 reviews on Steam. This breaks down to a total of 4,912 positive reviews and 185 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 Half-Life: MMod on the Steam Deck (though some functionality may be limited).

Release Date 3/14/2023
Developer MMod Team
Publisher Gunship_Mark_II
Steam App Id 1761270

More Mod Linux Games on Steam

Explore even more rankings for the 10 best Mod games available on Steam.

ImageName
Actions
Entropy : Zero 2 steam charts
60
8/20/2022
96
Free
Steam Charts
Garry's Mod steam charts
18,182
11/29/2006
96
$5.99
Steam Charts
tModLoader steam charts
24,459
5/16/2020
96
Free
Steam Charts
Portal: Revolution steam charts
76
1/6/2024
94
Free
Steam Charts
Portal Reloaded steam charts
41
4/19/2021
94
Free
Steam Charts
Black Mesa steam charts
2,064
3/6/2020
94
$1.99
Steam Charts
Portal Stories: Mel steam charts
35
6/25/2015
94
Free
Steam Charts
Downfall - A Slay the Spire Fan Expansion steam charts
185
3/25/2022
94
Free
Steam Charts
Rusted Warfare - RTS steam charts
154
7/14/2017
93
$2.99
Steam Charts
Half-Life: MMod steam charts
13
3/14/2023
93
Free
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, May 14). Steam Store. Steam Store.
  • Valve Corporation. (2025, May 14). Entropy : Zero 2 on Steam. Steam Store.
  • Valve Corporation. (2025, July 9). Garry's Mod on Steam. Steam Store.
  • Valve Corporation. (2025, July 1). tModLoader on Steam. Steam Store.
  • Valve Corporation. (2025, June 27). Portal: Revolution on Steam. Steam Store.
  • Valve Corporation. (2025, June 25). Portal Reloaded on Steam. Steam Store.
  • Valve Corporation. (2025, July 1). Black Mesa on Steam. Steam Store.
  • Valve Corporation. (2025, June 2). Portal Stories: Mel on Steam. Steam Store.
  • Valve Corporation. (2025, July 1). Downfall - A Slay the Spire Fan Expansion on Steam. Steam Store.
  • Valve Corporation. (2025, July 7). Rusted Warfare - RTS on Steam. Steam Store.
  • Valve Corporation. (2025, May 17). Half-Life: MMod on Steam. Steam Store.

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