Best Mod Games on Steam
Fan-made modifications, conversions, or content built on existing games.
Browse all Mod →
1Cities: Skylines - Cities: Skylines is a modern take on the classic city simulation. The game introduces new game play elements to realize the thrill and hardships of creating and maintaining a real city whilst expanding on some well-established tropes of the city building experience.
Mar 10, 2015
In this game, you can…
- accidentally route sewage outflow into your own drinking-water pumps and watch the whole city get sick from polluted water.
- follow a single named citizen as they commute, work, shop, and chain a metro ride into a bus transfer.
- use mods to expand the playable map far beyond the base size and even fly a plane through your own city.
- lay roads from a lone highway connection and watch empty land turn into neighborhoods with homes, shops, and factories.
- rebuild highway exits and roundabouts until traffic patterns actually change and congestion drops dramatically across the city.
- draw and rename districts, then flip policies like free public transport or no high-rises to reshape how an area develops.
- build a dam that raises the river, then watch the new water level flood whatever neighborhoods you put too close.
- run buses, metros, trains, taxis, cargo ships, and airports, then tune routes so the entire transport network works together.
2Black Mesa - Relive Half-Life.
Mar 6, 2020
In this game, you can…
- spend roughly a quarter of the campaign in a rebuilt Xen that plays like its own ecosystem, with new creatures and reimagined spaces.
- get hunted for a long stretch by a giant alien behemoth, then finally turn and fight it when there's nowhere left to run.
- trigger an experiment that rips open reality and starts an alien invasion, all while you stay in control and the story never cuts away.
- step through a teleporter into Xen and emerge in a vast, fully alien border-world with huge new areas to explore.
- survive firefights where enemy soldiers flank, use cover, and throw grenades aggressively, forcing you to keep moving and switch tactics.
- walk into a smoking battlefield where humans and aliens are actively fighting across wreckage, and you can get caught in the crossfire.
- solve physics-based obstacles by moving and stacking objects to reach switches, routes, and safety.
- pick up new iconic gear and watch it snap into place in your hands with full first-person animations.
3Teardown - Prepare the perfect heist in a fully destructible, simulated voxel world. Tear down walls with vehicles or use explosives to create your own shortcuts. Shape the environment to your advantage in the most creative ways you can imagine. Play solo or with up to 12 players in multiplayer.
Apr 21, 2022
In this game, you can…
- rip a fridge door off with a blowtorch, glue it onto a water-sensitive safe, and carry it through the rain without setting it off.
- move six rain-triggered safes in different trucks, plank and debris-shield them, ferry them to a cliff, then dump them into the ocean one by one.
- set a building on fire and watch flames spread, smoke pour out, and the structure collapse into a charred husk.
- spend as long as you want reshaping the map, then trigger a 60-second alarm and sprint an escape route you built yourself.
- knock a hole in a barn, build plank paths across rooftops, and use a crane to lift a car onto a boat before time runs out.
- peel a building apart until the roof drops onto a vehicle, then drive that vehicle as a mobile bridge to a new route.
- drive a bulldozer straight through walls and level an entire town.
- use a crane to lift pallets and lay planks to connect buildings, turning construction gear into your heist path.
4No More Room in Hell - The chances of you surviving this all out war of society and the undead are slim to none. Already, there are millions of the walking dead shambling about, searching for food to eat. There's no known cure. One bite can possibly end it all for you. However, you aren't alone in this nightmare.
Oct 31, 2013
In this game, you can…
- turn infected with only minutes to find pills, try gene therapy, or shoot yourself before you become the threat.
- kill yourself to avoid reanimating, including a full animation of raising the gun and pulling the trigger.
- call in supply drops with a flare gun while defending a zone until extraction shows up.
- hide a bite from your team, then ask for a gun and end your life in front of them when there's no cure.
- unload a gun to keep the ammo, then choose between carrying a flashlight, bandages, or extra bullets in your limited space.
- form a bayonet line with your squad and stab forward together instead of wasting precious ammo.
- stand still to tighten your aim for cheap-pistol headshots, turning a desperate hallway into a patient one-bullet-at-a-time shootout.
- watch a dead teammate reanimate into an enemy mid-run, forcing you to put them down before they reach the group.
5MudRunner - MudRunner is the ultimate off-road experience putting the players in the driver seat and dares them to take charge of incredible all-terrain vehicles, venturing across extreme Siberian landscapes with only a map and compass as guides!
Oct 30, 2017
In this game, you can…
- carve permanent tire ruts into the world, then make the same route worse by digging it deeper every time you drive it.
- fight rivers with strong currents that shove your truck off line, tip your trailer, and punish the wrong angle on a crossing.
- chain winches between multiple trucks so one rescue turns into a whole convoy pulling each other out of mud.
- climb a watchtower to uncover the map, then use what you revealed to plan routes, garages, fuel stops, and logging runs.
- send a scout to reveal terrain, then stage fuel trailers, repair trucks, cranes, and heavy haulers to keep a long delivery alive.
- find new trucks hidden in the woods, switch rigs mid-campaign, and suddenly unlock routes and jobs you couldn't finish before.
- load and unload logs yourself with a crane truck, turning a delivery into hands-on loading, hauling, and unloading operations.
- crawl through bogs so slowly that 25 mph feels like top speed, with every meter gained coming from traction and careful driving.
6STAR 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?
May 25, 2010
In this game, you can…
- build the Death Star, park it over a planet, and erase the entire world on command.
- play as a crime syndicate and take over the galaxy with bribery, kidnapping, racketeering, and piracy instead of straight conquest.
- target specific ship systems in space fights, like hangar bays or tractor beams, to shut down fighters or stop captures.
- run a planet takeover in two stages: win the space battle, then land troops and fight on the ground to actually claim the world.
- drop Darth Vader into a ground battle and let him carve through an entire base while your army pushes in behind him.
- mass an absurd armada, then watch it collide with an even bigger one, like 10 Star Destroyers facing 35 Mon Calamari cruisers.
- zoom out from a single starting world to controlling a galaxy-wide war map where every build choice changes the next battle.
- install total-conversion mods that jump eras, letting you field Clone Wars fleets like the Malevolence and rewrite what units even exist.
7Fistful of Frags - Multiplayer based, first person enabled, action packed and skill demanding shooter set in the Wild West times. A unique combination of non stop action and slow but powerful weaponry.
May 9, 2014
In this game, you can…
- throw your empty gun at someone when you run out of ammo, or kick their weapon away and capitalize immediately.
- get into a four-team shootout where the whole match turns into everyone fighting to stay on a moving train, kicking rivals off cars and tossing dynamite.
- drink whiskey to heal, but get so drunk your aim and accuracy suffer.
- jump off a building and kill someone with a sawn-off double barrel on the way down.
- mount two huge pistols at once, mix a revolver and shotgun one-handed, or fan the hammer for fast sloppy shots.
- shoot a cowboy's hat clean off their head, with trickier hat shots scoring more than an easy kill.
- back a teammate by healing them mid-fight with a portable whiskey bottle, then watch the enemy team rush your exposed position all at once.
- burst into a saloon brawl where someone's playing piano, everyone drops their guns, and the fight ends when dynamite clears the room.
8Bloons TD Battles - Go head to head with other players in a Bloon-popping battle for victory. From the creators of best-selling Bloons TD 6, this all new Battles game is specially designed for multiplayer combat, featuring the ability to control bloons directly and send them charging past your opponent's defenses.
Apr 20, 2016
In this game, you can…
- send bloons straight into another player's maze while you defend your own.
- risk your medallions in a winner-takes-all match and walk away with the whole pot.
- build an income engine over time, then cash it in to launch a massive rush that can end the match immediately.
- sell towers mid-fight, rebuild a new defense, and time your next send to hit the exact moment they're weakest.
- drop a giant MOAB on someone who's never seen one and watch their defense collapse on contact.
- punish greedy builds by suddenly sending a blimp they didn't prepare for, and break through before they can adapt.
- pick your tower loadout before the match, then solve the whole duel around those three choices as your opponent tries to counter-send.
9Company of Heroes - Delivering a visceral WWII gaming experience, Company of Heroes redefines RTS by bringing the sacrifice of heroic soldiers, war-ravaged environments, and dynamic battlefields to life. Please visit the "Company of Heroes - Legacy Edition" page for additional user reviews.
Sep 11, 2006
In this game, you can…
- use explosions to carve shell craters into open ground, then move infantry into those craters as new cover.
- cut an enemy off from supplies by taking a single connecting point and starving their reinforcements and vehicles.
- steal enemy weapons off the battlefield and turn their dropped gear into your own firepower.
- win matches by seizing map points that generate manpower, munitions, and fuel instead of harvesting resources.
- level a house the enemy is using for cover, then fight over the cratered wreckage it leaves behind.
- hide a sniper in camouflage, pick apart a fortified weapon team, and keep escaping as long as you stay concealed.
- trap infantry behind cover with suppression until they're pinned, then swing the fight by flanking or retreating in time.
- save a nearly-wiped squad by ordering an instant sprint back to headquarters, then reinforce the same unit instead of rebuilding it.
- win tank fights by getting side or rear angles, where the same armor that shrugs off frontal hits can suddenly collapse.
10Farming Simulator 15 - Welcome to the new generation of Farming Simulator!With a brand new graphics and physics engine, Farming Simulator 15 offers an immense open world, filled with details and visual effects transporting the Farming Simulator franchise to a new era.
Oct 30, 2014
In this game, you can…
- cut down trees that block your fields, chip the logs, then load and haul the lumber with telehandlers and forklifts.
- slice logs into almost any lengths and shapes you want with a chainsaw, turning forestry into a full alternative career.
- run a farm in co-op, splitting up harvesting, hauling, and forklift loading so your whole operation stays moving.
- coordinate a harvester and a tractor with a trailer, keeping them in sync while you unload grain to a silo or sell point.
- mow grass, ferment it into silage, and skip crop harvesting entirely while you make your money another way.
- plow a field until your tractor is unrecognizable with mud, then blast it clean with a pressure washer.
- feel a fully loaded trailer drag your tractor down on hills, wheels spinning as the weight fights you the whole way up.
- watch crops get pulled into the header, swept inward, and pour out as animated grain and straw instead of just vanishing.
