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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ARMA: Cold War Assault Bohemia Interactive's debut game published by Codemasters as Operation Flashpoint in 2001, became genre-defining combat military simulation and the No. 1 bestselling PC game around the world and has won many international awards, including “Game of The Year” and “Best Action Game”. Over 2 million copies have been sold since its release.

Price -79% 1.09€
Rating 7.8
Release 08 Aug 2011
Quake 4 As part of the elite Rhino Squad, you must spearhead Earth’s military invasion of a hostile alien homeworld. But, in this desperate war for humanity’s survival against an unrelenting enemy, you may discover that the only way to defeat them...is to become one of them.

Price -93% 1.16€
Rating 8.4
Release 04 Aug 2011
Dungeons of Dredmor Test your luck and cunning in this exciting RPG as you craft, cast, and pillage your way through Lord Dredmor's Dungeons.

Price -68% 2.50€
Rating 9.1
Release 13 Jul 2011
Mount & Blade: With Fire & Sword The standalone expansion for Mount & Blade! With Fire & Sword builds and expands upon the highly regarded combat system from Mount & Blade: Warband. Firearms have been introduced to the battlefield.

Price -80% 2.00€
Rating 8.6
Release 03 May 2011
Darkest Hour: A Hearts of Iron Game Developed by a team of experienced modders from the Paradox forum, Darkest Hour is a stand-alone Hearts of Iron game. The game features a mixture of short and in-depth campaigns set across the darkest chapters of the 20th century. Play from the outbreak of the Great War up until the onset of the Cold War.

Price -92% 0.82€
Rating 8.6
Release 08 Apr 2011
Atom Zombie Smasher The zombie apocalypse is upon us and it's up to you to evacuate everyone before they fall prey to the undead. Conduct massive rescue operations with a helping hand from snipers, artillery crews, orbital bombardments, and more.

Price -50% 4.99€
Rating 8.6
Release 14 Mar 2011
Total War: SHOGUN 2 Total War: SHOGUN 2 is the perfect mix of real-time and turn-based strategy gaming for newcomers and veterans alike.

Price -92% 2.63€
Rating 8.9
Release 14 Mar 2011
Sonic Adventure DX An ancient evil lurking within the Master Emerald has been unleashed from its slumber by the devious Dr. Eggman and is on the verge of becoming the ultimate monster using the 7 Chaos Emeralds. Only Sonic and his friends are heroic enough to put a stop to Dr. Eggman and his evil minions.

Price -69% 2.53€
Rating 8.9
Release 04 Mar 2011
Men of War: Assault Squad Men of War: Assault Squad delivers a deeply tactical WWII experience, blending large-scale strategy with intense, hands-on combat. Fight across multiple fronts – from European countryside to Pacific jungles and command every unit and every bullet on the battlefield.

Price -96% 0.42€
Rating 8.5
Release 24 Feb 2011
MX vs. ATV Reflex Think fast and hang on to your ride as you take independent control of the rider and take the ultimate test of mettle. Dual controls let you tear it up with death-defying tricks and high-flying freestyle action. Fight for traction and dig up the track to leave your mark.

Price -98% 0.48€
Rating 8.5
Release 26 Nov 2010
Dragon Age: Origins - Ultimate Edition Explore a stunning world, make complex moral choices, and engage in bone-crushing combat against massive and terrifying creatures. The Ultimate Edition includes Dragon Age: Origins, Dragon Age: Origins - Awakening and all nine content packs.

Price -75% 7.49€
Rating 8.5
Release 26 Oct 2010
Fallout: New Vegas Welcome to Vegas. New Vegas. Enjoy your stay!

Price -79% 2.13€
Rating 9.5
Release 21 Oct 2010
Sid Meier's Civilization® V Create, discover, and download new player-created maps, scenarios, interfaces, and more!

Price -93% 2.34€
Rating 9.5
Release 23 Sep 2010
Victoria II Carefully guide your nation from the era of absolute monarchies in the early 19th century, through expansion and colonization, to finally become a truly great power by the dawn of the 20th century. Victoria II is a grand strategy game played during the colonial era of the 19th century, where the player takes control of a country, guiding...

Price -90% 2.06€
Rating 9.0
Release 30 Aug 2010
SimCity™ 4 Deluxe Edition SimCity 4 Deluxe Edition includes the bestselling SimCity 4 and the all-new SimCity 4 Rush Hour Expansion Pack. Create the most massive region of cities ever, with a farming town, bedroom community, high-tech commercial center, and industrial backbone.

Price -88% 2.57€
Rating 8.0
Release 20 Jul 2010
Arma 2: Operation Arrowhead Three years after the conflict in Chernarus, portrayed in the original Arma 2, a new flashpoint explodes in the Green Sea Region. Coalition forces led by the US Army are deployed to Takistan to quickly restore peace and prevent further civilian casualties.

Price -95% 0.85€
Rating 9.0
Release 29 Jun 2010
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!

Price -76% 4.86€
Rating 9.7
Release 31 Mar 2010
Just Cause 2 Dive into an adrenaline-fuelled free-roaming adventure with 400 square miles of rugged terrain and hundreds of weapons and vehicles.

Price -97% 0.56€
Rating 8.9
Release 23 Mar 2010
S.T.A.L.K.E.R.: Call of Pripyat S.T.A.L.K.E.R.: Call of Pripyat is the direct sequel of the S.T.A.L.K.E.R.: Shadow of Chernobyl. As a Major Alexander Degtyarev you should investigate the crash of the governmental helicopters around the Zone and find out, what happened there.

Price -59% 8.28€
Rating 9.4
Release 11 Feb 2010
Call of Duty®: Modern Warfare® 2 (2009) The most-anticipated game of the year and the sequel to the best-selling first-person action game of all time, Modern Warfare 2 continues the gripping and heart-racing action as players face off against a new threat dedicated to bringing the world to the brink of collapse.

Price -15% 17.13€
Rating 9.2
Release 11 Nov 2009
Torchlight Adventure awaits in the award-winning Action RPG debut from Runic Games! Explore the randomized depths of this boom town, collect loot, and level up to save Torchlight - and possibly the world.

Price -95% 0.84€
Rating 8.8
Release 27 Oct 2009
Killing Floor 6-player co-op survival horror at its finest! Free updates, free special events and a ridiculous amount of fun!

Price -95% 1.01€
Rating 9.3
Release 14 May 2009
Saints Row 2 Saints Row 2 brings true freedom to open-world gaming. Players can play as who they want, how they want, and with whomever they want in this sequel to the much acclaimed and tremendously successful Saints Row.

Price -95% 0.58€
Rating 7.4
Release 07 Jan 2009
Mount & Blade Calradia is a land at war, offering great riches and even greater dangers to adventurers and mercenaries that flock to shed their blood on its soil. With courage and a strong sword, an unknown stranger can make a name as a warrior. Free-form sand-box gameplay.

Price -93% 0.74€
Rating 8.9
Release 03 Nov 2008
Fallout 3 Vault-Tec engineers have worked around the clock on an interactive reproduction of Wasteland life for you to enjoy from the comfort of your own vault. Included is an expansive world, unique combat, shockingly realistic visuals, tons of player choice, and an incredible cast of dynamic characters.

Price -91% 0.98€
Rating 8.0
Release 28 Oct 2008
X3: Terran Conflict It is the year 2938. The long wished-for encounter of the X Universe and the Earth holds both joy and sorrow for the people. Despite flourishing trade, the clash of the diverse races, cultures and life forms creates new tensions, mistrust and open conflict that need to be overcome!

Price -96% 0.78€
Rating 8.2
Release 16 Oct 2008
Sid Meier's Civilization IV: Colonization Sid Meier's Civilization IV: Colonization is the third offering in the award winning Civilization IV series. A re-imagining of the classic Colonization game Sid Meier created in 1994, Sid Meier's Civilization IV: Colonization is a total conversion of the Civilization IV engine into a game experience in which players will lead a European...

Price -81% 3.94€
Rating 8.3
Release 23 Sep 2008
S.T.A.L.K.E.R.: Clear Sky S.T.A.L.K.E.R.: Clear Sky – standalone prequel for the acclaimed S.T.A.L.K.E.R.: Shadow of Chernobyl, which tells you story about the Clear Sky group, that want to research the Zone and understand it better.

Price -69% 6.35€
Rating 8.4
Release 15 Sep 2008
IL-2 Sturmovik: 1946 Il-2 1946 includes all of the original IL-2 series content: IL-2 Sturmovik™: Forgotten Battles, Ace Expansion Pack, Pacific Fighters™ and alternate histry campaigns of year 1946. What was years ago began as a one-aircraft study sim is now an astonishing anthology, with a whopping 229 flyable aircraft and over 300 aircraft total!

Price -94% 0.63€
Rating 8.5
Release 13 Jun 2008
RollerCoaster Tycoon® 3: Platinum Rollercoaster Tycoon 3 Platinum combines the excitement of rollercoasters with the fun of a great strategy simulation. RCT3 Platinum combines the roller coaster theme park fun of the Roller Coaster Tycoon 3 with included expansion packs Soaked! and Wild! Now enjoy more options than ever.

Price -57% 5.45€
Rating 8.9
Release 12 Mar 2008
Quake II You are humanity’s last hope to stop the Strogg, a hostile alien race waging war against Earth. Play this military sci-fi FPS, now upgraded for modern platforms with improved visuals, new campaign content, online multiplayer/co-op, and more.

Price -95% 0.55€
Rating 9.3
Release 03 Aug 2007
Quake Developed by the award-winning id Software, Quake® is the ground-breaking, original dark fantasy first-person shooter that inspires today’s retro-style FPS games. With Quake (Enhanced), experience the authentic, updated, and visually enhanced version of the original.

Price -75% 2.59€
Rating 9.4
Release 03 Aug 2007
Wolfenstein 3D World War II rages. The Nazis are planning to build an unstoppable, mutant army. On a mission to steal the secret plans, you were captured and imprisoned. Now, a lucky break gives you the chance to escape, but a maze of passages and trigger-happy Nazis stand in your way.

Price -88% 0.64€
Rating 9.0
Release 03 Aug 2007
Quake III Arena The greatest warriors of all time and space have been summoned to battle for the amusement of an ancient alien race. Wield a variety of guns and power-ups as you fight for glory against ruthless combatants in this fast-paced single-player and multiplayer FPS.

Price -54% 6.94€
Rating 9.2
Release 03 Aug 2007
Nexus - The Jupiter Incident Ambitious megacorporations monopolize the conquest of space and the colonization of the solar system. At the very edge of the solar system, the companies make a discovery that will shift the technological advantage and upset the balance. And so a new conflict is born: "The Jupiter Incident."

Price -91% 0.99€
Rating 8.2
Release 03 Jul 2007
Deus Ex: Game of the Year Edition The year is 2052 and the world is a dangerous and chaotic place. Terrorists operate openly - killing thousands; drugs, disease and pollution kill even more. The world's economies are close to collapse and the gap between the insanely wealthy and the desperately poor grows ever wider.

Price -37% 4.45€
Rating 9.2
Release 29 Mar 2007

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