Best Moddable Games on Steam
Steam currently has 1,520 Moddable 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. Moddable game rankings were last updated on 2/21/2025.
Looking for more? Explore other lists such as:
- Free moddable games on Steam
- Best moddable Steam Deck games
- Best moddable Linux games on Steam
- Best moddable Steam games for Mac OS
- Free Steam games
- Most played Steam games
- Best rated Steam games
1. People Playground
Shoot, stab, burn, poison, tear, vaporise, or crush ragdolls in a large open space.
People Playground holds the #1 spot for "best Moddable game on Steam" with a Player Score of 97. Its score was calculated by analyzing a total of 277,233 reviews on Steam. This breaks down to a total of 273,319 positive reviews and 3,914 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 People Playground on the Steam Deck (though some functionality may be limited).
| Steam Price | $9.99 |
| Release Date | 7/23/2019 |
| Developer | mestiez |
| Publisher | Studio Minus |
| Steam App Id | 1118200 |
2. Left 4 Dead 2
Set in the zombie apocalypse, Left 4 Dead 2 (L4D2) is the highly anticipated sequel to the award-winning Left 4 Dead, the #1 co-op game of 2008. This co-operative action horror FPS takes you and your friends through the cities, swamps and cemeteries of the Deep South, from Savannah to New Orleans across five expansive campaigns.
Left 4 Dead 2 has achieved a Player Score of 97, placing it in the #2 spot for the best Moddable games. Its score was calculated by analyzing a total of 950,688 reviews on Steam. This breaks down to a total of 927,289 positive reviews and 23,399 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.
3. RimWorld
A sci-fi colony sim driven by an intelligent AI storyteller. Generates stories by simulating psychology, ecology, gunplay, melee combat, climate, biomes, diplomacy, interpersonal relationships, art, medicine, trade, and more.
RimWorld has achieved a Player Score of 97, placing it in the #3 spot for the best Moddable games. Its score was calculated by analyzing a total of 206,608 reviews on Steam. This breaks down to a total of 202,417 positive reviews and 4,191 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $27.99 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 | $27.99 |
| Release Date | 10/17/2018 |
| Developer | Ludeon Studios |
| Publisher | Ludeon Studios |
| Steam App Id | 294100 |
4. Euro Truck Simulator 2
Travel across Europe as king of the road, a trucker who delivers important cargo across impressive distances! With dozens of cities to explore, your endurance, skill and speed will all be pushed to their limits.
Euro Truck Simulator 2 has achieved a Player Score of 97, placing it in the #4 spot for the best Moddable games. Its score was calculated by analyzing a total of 817,599 reviews on Steam. This breaks down to a total of 797,466 positive reviews and 20,133 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. Valve has also verified it as playable on the Steam Deck and will run well.
| Steam Price | $19.99 |
| Release Date | 10/12/2012 |
| Franchise | SCS Software |
| Developer | SCS Software |
| Publisher | SCS Software |
| Steam App Id | 227300 |
5. 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 has achieved a Player Score of 96, placing it in the #5 spot for the best Moddable games. Its score was calculated by analyzing a total of 240,579 reviews on Steam. This breaks down to a total of 234,811 positive reviews and 5,768 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.
6. Mount & Blade: Warband
In a land torn asunder by incessant warfare, it is time to assemble your own band of hardened warriors and enter the fray. Lead your men into battle, expand your realm, and claim the ultimate prize: the throne of Calradia!
Mount & Blade: Warband has achieved a Player Score of 96, placing it in the #6 spot for the best Moddable games. Its score was calculated by analyzing a total of 165,643 reviews on Steam. This breaks down to a total of 161,892 positive reviews and 3,751 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 Mount & Blade: Warband on the Steam Deck (though some functionality may be limited).
| Steam Price | $4.99 |
| Release Date | 3/31/2010 |
| Developer | TaleWorlds Entertainment |
| Publisher | TaleWorlds Entertainment |
| Steam App Id | 48700 |
7. VPet-Simulator
Feeling like the computer desktop is too dull? Need something cute to heal oneself? Come and try this new completely free and open source V-Pet simulator. A cute and adorable pet that supports various feeding interactions to accompany you in game learning is definitely your best choice!
VPet-Simulator has achieved a Player Score of 96, placing it in the #7 spot for the best Moddable games. Its score was calculated by analyzing a total of 45,484 reviews on Steam. This breaks down to a total of 44,710 positive reviews and 774 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 VPet-Simulator on the Steam Deck.
8. BeamNG.drive
A dynamic soft-body physics vehicle simulator capable of doing just about anything.
BeamNG.drive has achieved a Player Score of 96, placing it in the #8 spot for the best Moddable games. Its score was calculated by analyzing a total of 310,394 reviews on Steam. This breaks down to a total of 302,412 positive reviews and 7,982 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 BeamNG.drive on the Steam Deck (though some functionality may be limited).
9. Factorio
Factorio is a game about building and creating automated factories to produce items of increasing complexity, within an infinite 2D world. Use your imagination to design your factory, combine simple elements into ingenious structures, and finally protect it from the creatures who don't really like you.
Factorio has achieved a Player Score of 96, placing it in the #9 spot for the best Moddable games. Its score was calculated by analyzing a total of 207,229 reviews on Steam. This breaks down to a total of 201,763 positive reviews and 5,466 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $35.00 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 | $35.00 |
| Release Date | 8/14/2020 |
| Developer | Wube Software LTD. |
| Publisher | Wube Software LTD. |
| Steam App Id | 427520 |
10. 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 has achieved a Player Score of 96, placing it in the #10 spot for the best Moddable games. Its score was calculated by analyzing a total of 1,147,959 reviews on Steam. This breaks down to a total of 1,111,115 positive reviews and 36,844 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 |
More Moddable Games
Explore even more rankings for the 100 best Moddable games available on Steam.
| Image | Name | Actions | ||||
|---|---|---|---|---|---|---|
| 5,433 | 7/23/2019 | 97 | $9.99 | Steam Charts | |
| 30,393 | 11/16/2009 | 97 | $9.99 | Steam Charts | |
| 37,069 | 10/17/2018 | 97 | $27.99 | Steam Charts | |
| 45,776 | 10/12/2012 | 97 | $19.99 | Steam Charts | |
| 3,220 | 11/16/2004 | 96 | $9.99 | Steam Charts | |
| 5,458 | 3/31/2010 | 96 | $4.99 | Steam Charts | |
| 12,084 | 8/14/2023 | 96 | Free | Steam Charts | |
| 20,416 | 5/29/2015 | 96 | $24.99 | Steam Charts | |
| 24,217 | 8/14/2020 | 96 | $35.00 | Steam Charts | |
| 25,656 | 11/29/2006 | 96 | $9.99 | Steam Charts | |
 | 187 | 8/20/2022 | 96 | Free | Steam Charts | |
 | 52,214 | 5/16/2020 | 96 | Free | Steam Charts | |
 | 129 | 10/5/2017 | 96 | $29.99 | Steam Charts | |
 | 7,719 | 2/2/2016 | 96 | $19.99 | Steam Charts | |
 | 1,876 | 5/26/2010 | 96 | $19.99 | Steam Charts | |
 | 993 | 11/2/2012 | 95 | $0.99 | Steam Charts | |
 | 928 | 5/18/2017 | 95 | $17.99 | Steam Charts | |
 | 903 | 11/19/1998 | 95 | $9.99 | Steam Charts | |
 | 2,725 | 4/23/2013 | 95 | $9.99 | Steam Charts | |
 | 12,873 | 11/1/2004 | 95 | $9.99 | 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 21). Steam Store. Steam Store.
- Valve Corporation. (2025, February 21). People Playground on Steam. Steam Store.
- Valve Corporation. (2025, March 21). Left 4 Dead 2 on Steam. Steam Store.
- Valve Corporation. (2025, March 29). RimWorld on Steam. Steam Store.
- Valve Corporation. (2025, March 28). Euro Truck Simulator 2 on Steam. Steam Store.
- Valve Corporation. (2025, March 21). Half-Life 2 on Steam. Steam Store.
- Valve Corporation. (2025, March 17). Mount & Blade: Warband on Steam. Steam Store.
- Valve Corporation. (2025, March 23). VPet-Simulator on Steam. Steam Store.
- Valve Corporation. (2025, March 29). BeamNG.drive on Steam. Steam Store.
- Valve Corporation. (2025, March 27). Factorio on Steam. Steam Store.
- Valve Corporation. (2025, March 29). Garry's Mod on Steam. Steam Store.