Best Mod Games on Steam
Steam currently has 202 Mod 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. Mod game rankings were last updated on 2/14/2025.
Looking for more? Explore other lists such as:
- Free mod games on Steam
- Best mod Steam Deck games
- Best mod Linux games on Steam
- Best mod Steam games for Mac OS
- Free Steam games
- Most played Steam games
- Best rated Steam games
1. 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 holds the #1 spot for "best Mod game on Steam" with a Player Score of 96. Its score was calculated by analyzing a total of 1,138,384 reviews on Steam. This breaks down to a total of 1,101,782 positive reviews and 36,602 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. At the moment, it is possible to play Garry's Mod on the Steam Deck (though some functionality may be limited).
| Steam Price | $9.99 |
| Release Date | 11/29/2006 |
| Developer | Facepunch Studios |
| Publisher | Valve |
| Steam App Id | 4000 |
2. 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 has achieved a Player Score of 96, placing it in the #2 spot for the best Mod games. Its score was calculated by analyzing a total of 296,658 reviews on Steam. This breaks down to a total of 288,124 positive reviews and 8,534 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).
3. 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 has achieved a Player Score of 96, placing it in the #3 spot for the best Mod games. Its score was calculated by analyzing a total of 27,480 reviews on Steam. This breaks down to a total of 27,008 positive reviews and 472 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).
4. The Chronicles Of Myrtana: Archolos
The Kingdom of Myrtana is in a dramatic situation. After the major defeat of the royal fleet in the waters of the Eastern Archipelago, the once thriving city of Archolos stood on the brink of crisis. Meanwhile, a young foreigner goes to the island in search of a new, better life.
The Chronicles Of Myrtana: Archolos has achieved a Player Score of 96, placing it in the #4 spot for the best Mod games. Its score was calculated by analyzing a total of 15,539 reviews on Steam. This breaks down to a total of 15,313 positive reviews and 226 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 possible to play The Chronicles Of Myrtana: Archolos on the Steam Deck (though some functionality may be limited).
| Release Date | 12/10/2021 |
| Developer | The Chronicles Of Myrtana Team |
| Publisher | The Chronicles Of Myrtana Team |
| Steam App Id | 1467450 |
5. STAR WARS™ Empire at War - Gold Pack
Command or corrupt an entire galaxy in the definitive Star Wars strategy collection. It is a time of galactic civil war. Will you take up the reins of the Rebellion, assume control of the Empire, or rule the Star Wars Underworld?
STAR WARS™ Empire at War - Gold Pack has achieved a Player Score of 96, placing it in the #5 spot for the best Mod games. Its score was calculated by analyzing a total of 38,314 reviews on Steam. This breaks down to a total of 37,403 positive reviews and 911 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $19.99 to play and can be played and ran on Windows systems. At the moment, it is possible to play STAR WARS™ Empire at War - Gold Pack on the Steam Deck (though some functionality may be limited).
| Steam Price | $19.99 |
| Release Date | 5/25/2010 |
| Developer | Petroglyph |
| Publishers | |
| Steam App Id | 32470 |
6. 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 has achieved a Player Score of 95, placing it in the #6 spot for the best Mod games. Its score was calculated by analyzing a total of 6,633 reviews on Steam. This breaks down to a total of 6,493 positive reviews and 140 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 |
7. 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 has achieved a Player Score of 94, placing it in the #7 spot for the best Mod games. Its score was calculated by analyzing a total of 25,035 reviews on Steam. This breaks down to a total of 24,066 positive reviews and 969 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 |
8. Black Mesa
Relive Half-Life.
Black Mesa has achieved a Player Score of 94, placing it in the #8 spot for the best Mod games. Its score was calculated by analyzing a total of 122,384 reviews on Steam. This breaks down to a total of 116,590 positive reviews and 5,794 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 Linux systems. At the moment, it is possible to play Black Mesa on the Steam Deck (though some functionality may be limited).
| Steam Price | $19.99 |
| Release Date | 3/6/2020 |
| Developer | Crowbar Collective |
| Publisher | Crowbar Collective |
| Steam App Id | 362890 |
9. 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 has achieved a Player Score of 94, placing it in the #9 spot for the best Mod games. Its score was calculated by analyzing a total of 22,388 reviews on Steam. This breaks down to a total of 21,525 positive reviews and 863 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 |
10. 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 has achieved a Player Score of 94, placing it in the #10 spot for the best Mod games. Its score was calculated by analyzing a total of 20,747 reviews on Steam. This breaks down to a total of 19,956 positive reviews and 791 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).
More Mod Games
Explore even more rankings for the 100 best Mod games available on Steam.
| Image | Name | Actions | ||||
|---|---|---|---|---|---|---|
| 30,220 | 11/29/2006 | 96 | $9.99 | Steam Charts | |
| 34,307 | 5/16/2020 | 96 | Free | Steam Charts | |
| 172 | 8/20/2022 | 96 | Free | Steam Charts | |
| 523 | 12/10/2021 | 96 | Free | Steam Charts | |
| 3,064 | 5/25/2010 | 96 | $19.99 | Steam Charts | |
| 77 | 9/16/2022 | 95 | Free | Steam Charts | |
| 258 | 1/6/2024 | 94 | Free | Steam Charts | |
| 845 | 3/6/2020 | 94 | $19.99 | Steam Charts | |
| 77 | 6/25/2015 | 94 | Free | Steam Charts | |
| 85 | 4/19/2021 | 94 | Free | Steam Charts | |
 | 2,445 | 11/17/2017 | 94 | $14.99 | Steam Charts | |
 | 369 | 3/25/2022 | 94 | Free | Steam Charts | |
 | 215 | 7/14/2017 | 93 | $4.99 | Steam Charts | |
 | 40 | 3/14/2023 | 93 | Free | Steam Charts | |
 | 1 | 8/12/2015 | 92 | Free | Steam Charts | |
 | 399 | 4/14/2023 | 92 | Free | Steam Charts | |
 | 8,648 | 3/10/2015 | 92 | $29.99 | Steam Charts | |
 | 1,618 | 9/11/2006 | 92 | $19.99 | Steam Charts | |
 | 2 | 6/16/2016 | 92 | Free | Steam Charts | |
 | 8 | 3/17/2023 | 91 | 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, February 14). Steam Store. Steam Store.
- Valve Corporation. (2025, February 14). Garry's Mod on Steam. Steam Store.
- Valve Corporation. (2025, February 5). tModLoader on Steam. Steam Store.
- Valve Corporation. (2025, January 25). Entropy : Zero 2 on Steam. Steam Store.
- Valve Corporation. (2025, February 12). The Chronicles Of Myrtana: Archolos on Steam. Steam Store.
- Valve Corporation. (2025, February 11). STAR WARS™ Empire at War - Gold Pack on Steam. Steam Store.
- Valve Corporation. (2025, February 5). Half-Life 2: VR Mod on Steam. Steam Store.
- Valve Corporation. (2025, February 10). Portal: Revolution on Steam. Steam Store.
- Valve Corporation. (2025, January 22). Black Mesa on Steam. Steam Store.
- Valve Corporation. (2025, February 5). Portal Stories: Mel on Steam. Steam Store.
- Valve Corporation. (2025, January 25). Portal Reloaded on Steam. Steam Store.