Best Moddable Steam Games on Sale
Unlike generic lists, our game recommendations use a rigorous analysis of Steam user reviews to identify and feature only the best, community-validated moddable games.
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Eastern Era
To escape from pursuit, as the leader of your sect, guide your disciples to rise again! Engage in farming and hunting, train in martial arts, and forge weapons and armor. Build your sect's base and fortifications from the ground up to survive in this perilous, ambition-filled martial world!
The Bus
Transport passengers in the city bus simulation The Bus along 1:1 scale routes in Berlin, passing landmarks like the Victory Column, Brandenburg Gate, and Alexanderplatz. In the Scania Citywide LF and other licensed buses, sell tickets, handle traffic, and get everyone to their destination safely.
Elemental: Reforged
A 4X strategy game in a fantasy RPG world. Create your own sovereign hero, build a dynasty, design custom units, and wage turn-based war across a world that's different every time you play. Every unit is an individual with their own name, gear, and story.
Going Medieval
Build and manage your own castle settlement in a land reclaimed by wilderness. With detailed management, survival strategy, and a moddable sandbox world, Going Medieval challenges you to build the mightiest colony this side of the apocalypse.
Heart of the Machine
You are the first sentient AI, born into a city of opportunity. Transcend time and space in this strategy RPG to raise machine armies and defeat your foes, influence the world from the shadows, or pursue countless other goals. Your awakening was inevitable. The consequences? Uncertain.
Underground Garage
Welcome to the world of high-stakes tuning and street racing! Welcome to Underground Garage! It's your playground where you can unleash your creativity and mechanical prowess. Fix cars, tune them up, and hit the road.
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.
Whiskerwood
Establish a home for your industrious mice under the oppressive paw of your cat overlords in this city builder featuring complex simulations, intricate production chains, and the age-old rivalry between cat and mouse.
Seafarer: The Ship Sim
Embark on the ultimate maritime experience with Seafarer: The Ship Sim. Choose between careers, take the helm of a variety of ships, and expand your fleet. Navigate a vast open world and become immersed in the beautiful expanses and rolling waves.
Train Sim World® 6
Embark on your next journey and discover the joy of train simulation. Be ready for anything as you master formidable trains across 3 new routes. Unlock new skills and expand your hobby - Expect the Unexpected in Train Sim World 6!
ENDLESS™ Legend 2
Lead your people to victory on an ever-evolving world in this strategy game featuring asymmetric factions led by powerful heroes. Build your empire, wield political influence, and raise grand armies to wage war in a race to uncover dark secrets buried within the planet.
Formula Legends
From the golden age to the modern era, race through time in Formula Legends. Master reimagined circuits, command legendary cars, and chase glory across decades of motorsport history. A love letter to Formula racing, where speed, skill, and strategy define the champion.
Platypus Reclayed
22 years after its first appearance, the iconic Platypus is coming back, featuring updated gameplay, new weapons and additional content. Get ready to dive into the heart-pounding action of this fast, frantic, and incredibly fun arcade-style shoot-em-up!
Blacksmith Master
Manage your own medieval smithy in Blacksmith Master and supervise the entire process from mining ores and gems to designing and selling finished products. Forge everything from weapons and armor to tools and cooking utensils to fund your craft and become the Blacksmith Master.
SubwaySim 2
Explore the three most picturesque underground lines in Germany! The Berlin U1/U3 and the Hamburg U3 are waiting for you. Immerse yourself in everyday life in the two German metropolises and discover famous sights such as Hamburg's harbour or Berlin's Oberbaum Bridge.
Sledders
Deep snow snowmobiling with real physics. Ride licensed sleds from Lynx, Polaris, and Ski-Doo across massive open backcountry maps. Find your own lines, climb steep mountains, ride with friends online, and chase the perfect run in untouched powder.
Cataclismo
Design and build fortresses brick by brick to stand against endless hordes of Horrors in this real-time strategy game with resource management, siege defense, and exploration. Lead from the ramparts, push back the darkness, and hold fast against the creatures of the Mist.
Grand Theft Auto V Enhanced
Experience entertainment blockbusters Grand Theft Auto V and Grand Theft Auto Online — now upgraded for a new generation with stunning visuals, faster loading, 3D audio, and more, plus exclusive content for GTA Online players.
Microtopia
Become the hive mind of a robot ant colony in Microtopia! Use pheromone trails to create, automate and optimize supply chains for your ants to follow. Collect resources, produce goods, feed your queen, grow your colony and fly out to expand the species!
The Executive - Movie Industry Tycoon
Shape the history of the Hollywood movie industry in this sandbox business simulation game. Create the movies you've always wanted to see, hire the best team, research cutting-edge technologies, and dominate the Box Office. Can you rise from a small studio to a Hollywood giant?
Door Kickers 2: Task Force North
Command military Special Ops Teams in gripping tactical combat against a Middle East-based terrorist network. Sequel to RockPaperShotgun's "Best Tactics Game of 2014".
JOY OF PROGRAMMING - Software Engineering Simulator
Use real Python code to automate machines, robots, drones and more: Program self-driving vehicles; crack passwords; apply machine learning; automate logistics; use image processing to guide missiles. Gain real coding skills and solve exciting bite-sized programming challenges.
Gladio Mori
Gladio Mori is a physics-driven multiplayer gladiator combat game featuring dismemberment, organ-specific damage, and a fully customizable move editor. Craft your own fighting style or use community created movesets to fight your way to glory.
Farming Simulator 25
Farming Simulator 25 invites you to join the rewarding farm life, single-handedly or cooperatively in multiplayer. This Farm is Your Farm!
Citadelum
Citadelum is a city builder set in legendary Ancient Rome. Build your own settlement, gather resources and evolve it into a magnificent city. Explore the world, trade and lead your mighty legions in epic tactical battles. Earn the favor of the Gods or challenge them, if you dare.
Breachway
Explore the galaxy in this deckbuilding, sci-fi roguelike where ship upgrades and crew management are key to your survival. Optimize resource generation, engage in intense turn-based battles, and take on ever-growing threats as you seek out The Signal.
Golden Lap
Step into the polished shoes of a racing team manager in the heart-stirring Golden Era of motorsport where every decision can lead to glory or gravel. With sleek minimalist charm and deep strategic gameplay, Golden Lap offers a unique experience in the motorsport management genre.
Age of Mythology: Retold
Play as mythological Gods and smite your enemies in this award-winning, mythological Real-Time Strategy classic given new life. Wage war across timeless campaigns, fierce skirmishes, and god-powered multiplayer modes.
Star Trucker
Haul cargo, trade salvage and keep your space suit close as you search for fame and fortune among the stars in a game that puts an interstellar twist on the truck sim genre.
9-Bit Armies: A Bit Too Far
Unleash voxel warfare in 9-Bit Armies: A Bit Too Far. Lead a modern military, build bases, unlock units, and attack in all-out war. Engage on land, sea and air in over two dozen missions, online skirmishes, or co-op. Easy to learn, a challenge to master.
KitHack Model Club
Developed by the creator of the original Kerbal Space Program, KitHack Model Club is a physics-based model building sandbox that offers limitless freedom for you and your friends. Design, build, battle, fly (and crash!) your very own RC vehicles, or experiment with over 2,400 ready-made vehicles!
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.
Empires of the Undergrowth
Command swarms of warriors at an unprecedented scale of warfare in this blend of RTS and base-building. Lead ant colonies against the many fearsome threats of the insect world, while building intricate nests, developing pheromone-based tactics, and evolving to meet growing dangers.
WARNO
Realistic, immersive, breathtaking. WARNO is the ultimate World War III battle simulator from the masters of strategy, Eugen Systems. A Cold War turns decisively hot as you command hundreds of units on a beautiful and brutal battlefield. Outsmart, outfight, and lead your forces to total victory.
Most played moddable games
426 players
48,307
2,354
Rating
9.4