Best Moddable Games on Steam
Steam currently has 1,544 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 4/12/2025.
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 278,720 reviews on Steam. This breaks down to a total of 274,776 positive reviews and 3,944 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 954,327 reviews on Steam. This breaks down to a total of 930,806 positive reviews and 23,521 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 207,852 reviews on Steam. This breaks down to a total of 203,637 positive reviews and 4,215 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $34.99 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 | $34.99 |
| 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 822,665 reviews on Steam. This breaks down to a total of 802,368 positive reviews and 20,297 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 242,317 reviews on Steam. This breaks down to a total of 236,505 positive reviews and 5,812 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 165,874 reviews on Steam. This breaks down to a total of 162,122 positive reviews and 3,752 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. At the moment, it is possible to play Mount & Blade: Warband on the Steam Deck (though some functionality may be limited).
| Steam Price | $19.99 |
| 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 45,824 reviews on Steam. This breaks down to a total of 45,046 positive reviews and 778 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 315,727 reviews on Steam. This breaks down to a total of 307,530 positive reviews and 8,197 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 208,218 reviews on Steam. This breaks down to a total of 202,723 positive reviews and 5,495 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 1,151,343 reviews on Steam. This breaks down to a total of 1,114,433 positive reviews and 36,910 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 |
More Moddable Games
Explore even more rankings for the 100 best Moddable games available on Steam.
| Image | Name | Actions | ||||
|---|---|---|---|---|---|---|
| 4,904 | 7/23/2019 | 97 | $9.99 | Steam Charts | |
| 24,726 | 11/16/2009 | 97 | $9.99 | Steam Charts | |
| 33,091 | 10/17/2018 | 97 | $34.99 | Steam Charts | |
| 42,148 | 10/12/2012 | 97 | $19.99 | Steam Charts | |
| 2,416 | 11/16/2004 | 96 | $9.99 | Steam Charts | |
| 4,897 | 3/31/2010 | 96 | $19.99 | Steam Charts | |
| 11,950 | 8/14/2023 | 96 | Free | Steam Charts | |
| 20,853 | 5/29/2015 | 96 | $24.99 | Steam Charts | |
| 21,411 | 8/14/2020 | 96 | $35.00 | Steam Charts | |
| 24,382 | 11/29/2006 | 96 | $5.99 | Steam Charts | |
 | 129 | 8/20/2022 | 96 | Free | Steam Charts | |
 | 43,415 | 5/16/2020 | 96 | Free | Steam Charts | |
 | 91 | 10/5/2017 | 96 | $29.99 | Steam Charts | |
 | 7,694 | 2/2/2016 | 96 | $19.99 | Steam Charts | |
 | 1,773 | 5/26/2010 | 96 | $19.99 | Steam Charts | |
 | 332 | 11/2/2012 | 95 | $9.99 | Steam Charts | |
 | 1,502 | 5/18/2017 | 95 | $8.99 | Steam Charts | |
 | 823 | 11/19/1998 | 95 | $9.99 | Steam Charts | |
 | 2,796 | 4/23/2013 | 95 | $2.49 | Steam Charts | |
 | 9,858 | 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, April 12). Steam Store. Steam Store.
- Valve Corporation. (2025, April 12). People Playground on Steam. Steam Store.
- Valve Corporation. (2025, April 3). Left 4 Dead 2 on Steam. Steam Store.
- Valve Corporation. (2025, April 19). RimWorld on Steam. Steam Store.
- Valve Corporation. (2025, April 17). Euro Truck Simulator 2 on Steam. Steam Store.
- Valve Corporation. (2025, April 18). Half-Life 2 on Steam. Steam Store.
- Valve Corporation. (2025, April 19). Mount & Blade: Warband on Steam. Steam Store.
- Valve Corporation. (2025, April 20). VPet-Simulator on Steam. Steam Store.
- Valve Corporation. (2025, April 19). BeamNG.drive on Steam. Steam Store.
- Valve Corporation. (2025, April 14). Factorio on Steam. Steam Store.
- Valve Corporation. (2025, April 17). Garry's Mod on Steam. Steam Store.