Best Moddable games on Steam
Unlike generic lists, our strategy game recommendations use a rigorous analysis of Steam user reviews to identify and feature only the best, community-validated moddable games. For those who prefer not to search, lists of the most played, top deals and best free moddable games are available at the bottom of the page.
Filters & Lists
Victoria 3
Paradox Development Studio invites you to build your ideal society in the tumult of the exciting and transformative 19th century. Balance the competing interests in your society and earn your place in the sun in Victoria 3, one of the most anticipated games in Paradox’s history.
Pixel Cup Soccer - Ultimate Edition
Pixel Cup Soccer is a retro-style arcade game. Play friendly matches, tournaments or create your team and lead it to glory in career mode! You can play it alone or with up to 8 friends, locally or through Steam remote, you can choose whether to play competitively, cooperatively, or even both!
Terra Invicta
An alien invasion has fractured humanity into seven ideological factions each with a unique vision for the future. Lead your chosen faction to take control of Earth’s nations, expand across the Solar System, and battle enemy fleets in tactical combat.
Trombone Champ
Honk, blow, & toot your way through over 60 songs, collect all 50 unique Tromboner Cards, and uncover the mysteries of the Trombiverse. Do you have what it takes to become the true Trombone Champ?
Recipe for Disaster
Recipe for Disaster is a management sim that captures the fast-paced, drama-filled environment of a professional kitchen and dining room. Build your dream restaurant, create recipes, design menus and manage your staff, all while contending with demanding customers and disastrous situations!
Rock Life: The Rock Simulator
Built from the ground up, Rock Life is the next generation of immersion and simulations. Live, do, and experience what it is like to truly become one with nature... as a rock!
Kanjozoku Game レーサー Online Street Racing & Drift
90s Osaka Kanjo Night Street Racing and Drift Online with True JDM Cars, Online PvP, Engine, Body and Suspension Tuning!
Clanfolk
Clanfolk is a colony sim set in the Scottish Highlands. Harness your environment to survive - fish, gather, hunt, and farm as you prepare for the winter. Build an inn, trade with other clans, have children and marry them off - live life and prosper across the generations.
Hands of Necromancy
Hands of Necromancy is a Dark Fantasy FPS metroidvania, inspired by classics such as Heretic and made with the GZDoom engine. Wield weapons, magic or transform into a fearsome monster to slay your foes, then raise them as undead servants and unleash even more carnage to become a master Necromancer!
Football Simulator
Step onto the gridiron with Football Simulator and experience the most dynamic and physics-driven football game ever made. Break through tackles, juggle tipped passes, and dive for interceptions to lead your team to victory. Features a fully moddable environment.
TOKOYO: The Tower of Perpetuity
You find yourself trapped in a mysterious tower – one that transforms its very structure every 24 hours, where you must surpass countless poor fallen souls and make your way to the heretofore unseen top!
Captain of Industry
Land your crew of survivors on an abandoned island and survive! Mine raw materials, grow food, build factories, manufacture products, research new tech, and trade with others. Become an industrial superpower! But this is no easy task, you will be put to the test to keep your settlement alive.
Trainz Railroad Simulator 2022
Drive, Explore, Operate and Create the railroad of your dreams - and now you can collaborate in real time with Multiplayer Surveyor! TRS22 showcases a range of high quality routes, sessions and trains to drive, plus all the scenery you need to make your own masterpiece.
Old World
Old World is a revolutionary new historical strategy game where you lead your dynasty over generations of rule against rival kings and queens. Wage massive wars, manage your court, and build a dynasty — or watch your empire crumble to dust. What legacy will you leave behind?
Outward Definitive Edition
No remarkable journey is achieved without great effort. In Outward, the cold of the night or an infected wound can be as dangerous as a predator lurking in the dark. Explore the vast world of Aurai solo or in Co-op. The Definitive Edition features both DLCs and quality of life improvements.
Kemono Friends Cellien May Cry
A fanfic game of "Kemono Friends". Hack and slash action RPG. You can summon Friends and fight together. There are more than 30 Friends. There are more than 60 types of enemies. There are 4 levels of difficulty, so even people who are not good at action games can enjoy it.
Animal Revolt Battle Simulator
The ultimate physics-based, sandbox battle simulator where you can create funny battles between all sorts of ragdoll creatures! You can also make your own monsters with the unit creator or even join the battles yourself in the first-person mode!
Dungeon Alchemist
Dungeon Alchemist is mapmaking software for tabletop RPG's that enables you to make amazing, high-quality maps in seconds!
Battle Cry of Freedom
Battle Cry of Freedom brings brutal real-time first and third-person combat set in the 19th Century America, presenting players with the opportunity to re-fight the American Civil War as either the Union or the Confederates.
Spaceflight Simulator
In Spaceflight Simulator, you will get to build your rockets, plan launches and flights, attempt landings, deploy payloads and explore new worlds.
NEBULOUS: Fleet Command
Take command of your hand-tailored fleet of space warships and use realistic radar, electronic warfare, advanced movement controls in 3D space, and precision targeting to outmaneuver and outwit your opponents in a simulation-heavy tactical space game like no other.Most played moddable games on Steam
Take a look at the top moddable games that are currently attracting the largest player bases on the Steam platform, as of April 16th 2025.
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 is a sandbox, moddable and multiplayer game developed by Facepunch Studios and published by Valve. Released on November 29th 2006 has received 1,150,066 reviews of which 1,113,171 were positive and 36,895 were negative resulting in an impressive rating of 9.6 out of 10. The game has hit the top spot as the #1 most played moddable game, thanks to its 17,010 peak concurrent players over the last day.
9.6
1,113,171
36,895
17,010
players
2. Fallout: New Vegas
Welcome to Vegas. New Vegas. Enjoy your stay! Fallout: New Vegas is a open world, rpg and post-apocalyptic game developed by Obsidian Entertainment and published by Bethesda Softworks. Released on October 21st 2010 has received 225,222 reviews of which 216,413 were positive and 8,809 were negative resulting in an impressive rating of 9.5 out of 10. While seeing 5,323 players online at once in the last 24 hours, this game is currently ranked #2 among moddable games based on player count.
9.5
216,413
8,809
5,323
players
3. People Playground
Shoot, stab, burn, poison, tear, vaporise, or crush ragdolls in a large open space. People Playground is a sandbox, gore and physics game developed by mestiez and published by Studio Minus. Released on July 23rd 2019 has received 277,891 reviews of which 273,962 were positive and 3,929 were negative resulting in an impressive rating of 9.8 out of 10. While seeing 4,079 players online at once in the last 24 hours, this game is currently ranked #3 among moddable games based on player count.
9.8
273,962
3,929
4,079
players
4. Workers & Resources: Soviet Republic
Build a soviet republic from an impoverished country into a rich industrial superpower in a city builder with intricate production chains and a fully simulated global economy. Manage the lives of your citizens from education to work and party loyalty to criminal activity. Workers & Resources: Soviet Republic is a strategy, simulation and city builder game developed by 3Division and published by Hooded Horse. Released on June 20th 2024 has received 21,524 reviews of which 19,651 were positive and 1,873 were negative resulting in a rating of 8.9 out of 10. With 1,351 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played moddable games.
8.9
19,651
1,873
1,351
players
5. The Elder Scrolls V: Skyrim
EPIC FANTASY REBORN The next chapter in the highly anticipated Elder Scrolls saga arrives from the makers of the 2006 and 2008 Games of the Year, Bethesda Game Studios. Skyrim reimagines and revolutionizes the open-world fantasy epic, bringing to life a complete virtual world open for you to explore any way you choose. The Elder Scrolls V: Skyrim is a open world, rpg and fantasy game developed by Bethesda Game Studios and published by Bethesda Softworks. Released on November 10th 2011 has received 316,940 reviews of which 300,631 were positive and 16,309 were negative resulting in an impressive rating of 9.4 out of 10. With 1,313 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played moddable games.
9.4
300,631
16,309
1,313
players
6. Car Mechanic Simulator 2021
Work your way to a service empire. Get your hands dirty in a highly realistic simulation game that pays major attention to details. Pay a visit to a new Auction house and buy cars in various conditions. Expand your range of services by investing in a new work space and equipment. Car Mechanic Simulator 2021 is a simulation, automobile sim and sandbox game developed by Red Dot Games and published by PlayWay S.A.. Released on August 11th 2021 has received 28,896 reviews of which 27,723 were positive and 1,173 were negative resulting in an impressive rating of 9.4 out of 10. With 1,208 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played moddable games.
9.4
27,723
1,173
1,208
players
7. The Elder Scrolls IV: Oblivion® Game of the Year Edition
The Elder Scrolls IV: Oblivion® Game of the Year Edition presents one of the best RPGs of all time like never before. Step inside the most richly detailed and vibrant game-world ever created. With a powerful combination of freeform gameplay and unprecedented graphics, you can unravel the main quest at your own pace or explore the vast... The Elder Scrolls IV: Oblivion® Game of the Year Edition is a rpg, open world and fantasy game developed by Bethesda Game Studios and published by Bethesda Softworks. Released on June 16th 2009 has received 49,108 reviews of which 46,854 were positive and 2,254 were negative resulting in an impressive rating of 9.4 out of 10. With 1,161 concurrent players in the last 24 hours, the game currently holds the #7 spot among the most played moddable games.
9.4
46,854
2,254
1,161
players
8. Blade and Sorcery
Blade & Sorcery is a built-for-VR medieval fantasy with full physics driven melee, ranged and magic combat. Become a powerful warrior, ranger or sorcerer and devastate your enemies. Blade and Sorcery is a vr, swordplay and moddable game developed and published by WarpFrog. Released on June 17th 2024 has received 56,980 reviews of which 55,088 were positive and 1,892 were negative resulting in an impressive rating of 9.5 out of 10. With 687 concurrent players in the last 24 hours, the game currently holds the #8 spot among the most played moddable games.
9.5
55,088
1,892
687
players
9. Beat Saber
Beat Saber is a VR rhythm game where you slash the beats of adrenaline-pumping music as they fly towards you, surrounded by a futuristic world. Beat Saber is a vr, rhythm and music game developed and published by Beat Games. Released on May 21st 2019 has received 74,429 reviews of which 71,160 were positive and 3,269 were negative resulting in an impressive rating of 9.4 out of 10. With 423 concurrent players in the last 24 hours, the game currently holds the #9 spot among the most played moddable games.
9.4
71,160
3,269
423
players
10. Fallout 3: Game of the Year Edition
Prepare for the Future™ With Fallout 3: Game of the Year Edition, experience the most acclaimed game of 2008 like never before. Create a character of your choosing and descend into an awe-inspiring, post-apocalyptic world where every minute is a fight for survival. Fallout 3: Game of the Year Edition is a open world, rpg and post-apocalyptic game developed by Bethesda Game Studios and published by Bethesda Softworks. Released on December 17th 2009 has received 50,177 reviews of which 40,709 were positive and 9,468 were negative resulting in a rating of 8.0 out of 10. With 387 concurrent players in the last 24 hours, the game currently holds the #10 spot among the most played moddable games.
8.0
40,709
9,468
387
players
Best deals on moddable games on Steam
Discover fantastic savings with the best discounts on a variety of moddable games available on Steam right now, updated on April 16th 2025. Looking for even more deals? Use the search filters to explore a wider range of discounted moddable games.
1. Ashes of the Singularity: Escalation
A massive-scale real-time strategy game where you command entire armies on a dynamic battlefield. Conquer multiple worlds across several single-player campaigns; or play with your friends in multiplayer combat. Ashes of the Singularity: Escalation is a rts, base-building and pvp game developed by Stardock Entertainment and Oxide Games and published by Stardock Entertainment. Released on November 10th 2016 has received 4,738 reviews of which 3,526 were positive and 1,212 were negative resulting in a rating of 7.3 out of 10. Featuring a massive 94% discount, this game currently holds the #1 spot in the best deals for moddable category.
7.3
3,526
1,212
-94%
29.17€
1.75€
2. 112 Operator
Manage emergency services in any city in the world! Take calls and dispatch rescue forces. Handle difficult situations, now depending on the weather, and traffic. Help the citizens through cataclysms and natural disasters, becoming a better emergency number operator every day! 112 Operator is a simulation, realistic and casual game developed by Jutsu Games and published by Games Operators. Released on April 23rd 2020 has received 6,439 reviews of which 5,761 were positive and 678 were negative resulting in a rating of 8.7 out of 10. Thanks to its incredible 90% discount, this game is now the #2 best deal in moddable games.
8.7
5,761
678
-90%
20.80€
2.08€
3. Fallout: New Vegas
Welcome to Vegas. New Vegas. Enjoy your stay! Fallout: New Vegas is a open world, rpg and post-apocalyptic game developed by Obsidian Entertainment and published by Bethesda Softworks. Released on October 21st 2010 has received 225,222 reviews of which 216,413 were positive and 8,809 were negative resulting in an impressive rating of 9.5 out of 10. Thanks to its incredible 77% discount, this game is now the #3 best deal in moddable games.
9.5
216,413
8,809
-77%
10.17€
2.34€
4. Airport CEO
Build and manage an international airport! Airport CEO is a flight, resource management and moddable game developed and published by Apog Labs. Released on March 04th 2021 has received 7,582 reviews of which 6,353 were positive and 1,229 were negative resulting in a rating of 8.2 out of 10. Currently offered at a significant 71% discount, this title has earned the #4 position in the best deals for moddable games.
8.2
6,353
1,229
-71%
24.69€
7.16€
5. Car Mechanic Simulator 2021
Work your way to a service empire. Get your hands dirty in a highly realistic simulation game that pays major attention to details. Pay a visit to a new Auction house and buy cars in various conditions. Expand your range of services by investing in a new work space and equipment. Car Mechanic Simulator 2021 is a simulation, automobile sim and sandbox game developed by Red Dot Games and published by PlayWay S.A.. Released on August 11th 2021 has received 28,896 reviews of which 27,723 were positive and 1,173 were negative resulting in an impressive rating of 9.4 out of 10. Currently offered at a significant 67% discount, this title has earned the #5 position in the best deals for moddable games.
9.4
27,723
1,173
-67%
24.15€
7.97€
6. Workers & Resources: Soviet Republic
Build a soviet republic from an impoverished country into a rich industrial superpower in a city builder with intricate production chains and a fully simulated global economy. Manage the lives of your citizens from education to work and party loyalty to criminal activity. Workers & Resources: Soviet Republic is a strategy, simulation and city builder game developed by 3Division and published by Hooded Horse. Released on June 20th 2024 has received 21,524 reviews of which 19,651 were positive and 1,873 were negative resulting in a rating of 8.9 out of 10. Currently offered at a significant 65% discount, this title has earned the #6 position in the best deals for moddable games.
8.9
19,651
1,873
-65%
40.40€
14.14€
7. The Elder Scrolls V: Skyrim
EPIC FANTASY REBORN The next chapter in the highly anticipated Elder Scrolls saga arrives from the makers of the 2006 and 2008 Games of the Year, Bethesda Game Studios. Skyrim reimagines and revolutionizes the open-world fantasy epic, bringing to life a complete virtual world open for you to explore any way you choose. The Elder Scrolls V: Skyrim is a open world, rpg and fantasy game developed by Bethesda Game Studios and published by Bethesda Softworks. Released on November 10th 2011 has received 316,940 reviews of which 300,631 were positive and 16,309 were negative resulting in an impressive rating of 9.4 out of 10. Currently offered at a significant 57% discount, this title has earned the #7 position in the best deals for moddable games.
9.4
300,631
16,309
-57%
14.91€
6.41€
8. 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 is a sandbox, moddable and multiplayer game developed by Facepunch Studios and published by Valve. Released on November 29th 2006 has received 1,150,066 reviews of which 1,113,171 were positive and 36,895 were negative resulting in an impressive rating of 9.6 out of 10. Currently offered at a 40% discount, this title has earned the #8 position in the best deals for moddable games.
9.6
1,113,171
36,895
-40%
9.99€
5.99€
Free moddable games on Steam
Check out this fantastic list of free-to-play moddable games you can enjoy on Steam right now, updated on April 16th 2025. Looking for even more free titles? Use the search filters to explore a wider range of free to play moddable games.
1. DFHack - Dwarf Fortress Modding Engine
Extensions for Dwarf Fortress, including bugfixes, interface improvements, automation agents, design blueprints, modding building blocks, and other tools. DFHack - Dwarf Fortress Modding Engine is a dwarf, simulation and software game developed and published by The DFHack Team. Released on April 13th 2023 has received 692 reviews of which 687 were positive and 5 were negative resulting in an impressive rating of 9.2 out of 10. With 260 active players enjoying it for free, this strategy game has reached the #1 spot among the top free moddable games on Steam.
9.2
687
5
260
players