Best Mod 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 mod games. For those who prefer not to search, check out lists of the most played, top deals and best free to play Mod games on Steam.

Filters & Lists
Just Cause™ 3: Multiplayer Mod Just Cause 3 Multiplayer mod is a free fan-created project bringing an explosive and highly-customizable multiplayer.

Price Free to play
Rating 7.6
Release 20 Jul 2017
Rusted Warfare - RTS {{An RTS inspired by the classics of the past!}} Making up for it's subpar retro graphics with fun gameplay and modern multi-threaded tech enabling huge battles to run smooth... Featuring singleplayer challenges, skirmish, sandbox, 10-player multiplayer & workshop modding.

Price 4.99€
Rating 9.3
Release 14 Jul 2017
Notruf 112 | Emergency Call 112 Emergency Call 112 – The Fire Fighting Simulation is an exciting, fully detailed simulation of the eventful life of a big city fire department. It was developed in cooperation with and modelled on the fire brigade of Mülheim, Germany. Mülheim has one of the largest and most modern fire stations in Europe.

Price 14.95€
Rating 7.4
Release 09 Nov 2016
Transmissions: Element 120 TE120 is a short single player experience set in the Half-Life Universe featuring a gravity defying weapon that allows you to jump buildings and sustain large falls. The story takes place at a mysterious date & location. Where are you? Why have you been sent?

Price Free to play
Rating 9.2
Release 16 Jun 2016
Bloons TD Battles Go head to head with other players in a Bloon-popping battle for victory. From the creators of best-selling Bloons TD 5, 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.

Price Free to play
Rating 8.9
Release 20 Apr 2016
Bus Simulator 16 Get behind the wheel of 13 realistic city buses licensed by known city bus manufacturers such as Mercedes-Benz and MAN. Keep an eye on the traffic code and drive your passengers safely to their destinations through five characteristic city districts.

Price -84% 1.63€
Rating 6.9
Release 02 Mar 2016
Prospekt Prospekt begins in the Nova Prospekt prison in the Half-Life universe. Gordon Freeman is slowly being overrun by soldiers in the prison, however unknown to him, his Vortigaunt allies manage to find some help from a forgotten hero.

Price 4.99€
Rating 6.1
Release 18 Feb 2016
CPUCores :: Maximize Your FPS Maximize your FPS :: Use CPUCores to isolate and constrain OS + non-game processes and dedicate CPU resources to be used exclusively for your games! CPUCores fully integrates with all Steam games!

Price 12.99€
Rating 7.0
Release 06 Jul 2015
Car Mechanic Simulator 2015 New cars, new tools, new options, more parts and much more fun in the next version of Car Mechanic Simulator! Take your wrench! Create and expand your auto repairs service empire. Car Mechanic Simulator 2015 will take you behind the scenes of daily routine in car workshop.

Price -91% 1.76€
Rating 9.0
Release 23 Apr 2015
Cities: 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.

Price -84% 4.50€
Rating 9.2
Release 10 Mar 2015
Construction Simulator 2015 In Construction Simulator 2015, you take the controls of 16 realistic construction machines made by LIEBHERR, STILL and MAN with high-quality 3D graphics.

Price -86% 2.16€
Rating 8.0
Release 18 Nov 2014
Farming 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.

Price -75% 4.28€
Rating 9.0
Release 30 Oct 2014
Counter-Strike Nexon Counter-Strike Nexon is a Free to Play MMOFPS offering competitive PvP and PvE action including content from the original Counter-Strike and all new game modes, map creation function, weapons, and hordes of Zombies!

Price Free to play
Rating 6.6
Release 07 Oct 2014
Fistful 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.

Price Free to play
Rating 9.0
Release 09 May 2014
Just Cause 2: Multiplayer Mod JC2-MP is a project to bring multiplayer to Just Cause 2 in all of its magnificent glory. Imagine the chaos of normal Just Cause 2, then extending it out to dozens, hundreds, and even thousands of players.

Price Free to play
Rating 8.9
Release 16 Dec 2013
No 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.

Price Free to play
Rating 8.9
Release 31 Oct 2013
Cry of Fear Cry of Fear is a psychological single-player and co-op horror game set in a deserted town filled with horrific creatures and nightmarish delusions. You play as a young man desperately searching for answers in the cold Scandinavian night, finding his way through the city as he slowly descends into madness.

Price Free to play
Rating 8.7
Release 25 Apr 2013
STAR 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?

Price 19.50€
Rating 9.6
Release 25 May 2010
Pirates, Vikings, and Knights II Pirates, Vikings, and Knights II pits three teams against each other in a struggle for wealth, power and total domination. Whether using the Gunpowder Keg to clear out a territory full of enemies, or the Javelin to pin your dead foes to a wall, you'll find this game both hilarious and exhilarating.

Price Free to play
Rating 8.5
Release 12 Feb 2010
Men of War™ Men of War is a stunning Real-Time Strategy game that takes place during the height of World War II. Intense battles span Europe and North Africa as gamers play as Soviet, Allied or German forces across 19 massive single-player missions.

Price 4.99€
Rating 8.7
Release 06 May 2009
Dystopia Dystopia is a cyberpunk game with tense combat situations in a high-tech world spanned by computer networks. Playing as either Punk mercenaries, or Corporate security forces, the player will fight through the physical world to gain access, via jack-in terminals, to cyberspace.

Price Free to play
Rating 8.1
Release 06 Feb 2009
Zombie Panic! Source Dive into the zombie apocalypse with Zombie Panic! Source: a cooperative, survival-horror first-person-shooter. A fast-paced standalone modification.

Price Free to play
Rating 8.2
Release 03 Oct 2008
Company 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.

Price -84% 3.09€
Rating 9.2
Release 11 Sep 2006
Team Fortress Classic One of the most popular online action games of all time, Team Fortress Classic features over nine character classes -- from Medic to Spy to Demolition Man -- enlisted in a unique style of online team warfare. Each character class possesses unique weapons, items, and abilities, as teams compete online in a variety of game play modes.

Price 4.99€
Rating 8.5
Release 01 Apr 1999