Discounted 4X 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 4x games. For those who prefer not to search, check out lists of the most played, top deals and best free to play 4X games on Steam.

Filters & Lists
Age of Wonders II: The Wizard's Throne Age of Wonders II is the wildly anticipated sequel to the award-winning strategy phenomenon. Delivering an invigorating mix of Empire Building, Role-playing, and Warfare, Age of Wonders II brings s turn-based strategy to new heights.

Price -92% 0.72€
Rating 7.6
Release 12 Oct 2010
Age of Wonders Welcome to Age of Wonders, the authentic turn based fantasy strategy classic that started the hit series. Age of Wonders’ intimate atmosphere with painterly graphics still shines today. The game’s fully patched up, start building your fantasy empire today!

Price -85% 0.93€
Rating 7.5
Release 12 Oct 2010
Star Ruler Take command of a vast interstellar empire and safeguard your species from total extinction in a procedurally generated 3D galaxy (with the option to flatten it) from 1 System to 10,000+! Prove your species' ingenuity through a deep and intricate combat system where anything (from individual components on ships to the stars themselves)...

Price -93% 0.52€
Rating 7.7
Release 20 Sep 2010
Sword of the Stars: Complete Collection Sword of the Stars: Complete Collection is the original Sword of the Stars games and the three expansions Born of Blood, A Murder of Crows and Argos Naval Yard. It is the year 2405, and human scientists have discovered a new technology that allows travel from star to star at speeds faster than light.

Price -95% 0.52€
Rating 8.2
Release 04 Jun 2010
AI War: Fleet Command "You are outgunned. You are massively outnumbered. You must win." These are your orders. Humanity has already fought its war against the machines -- and lost. AI death squads stand watch over every planet and every wormhole, the few remaining human settlements are held captive in orbiting bubbles, and the AIs have turned their...

Price -94% 0.66€
Rating 7.9
Release 21 Oct 2009
Europa Universalis III Complete Europa Universalis III Complete includes the original Europa Universalis III as well as the expansions In Nomine and Napoleons Ambition Europa Universalis III delves deeply into the areas of exploration, trade, warfare and diplomacy.

Price -88% 1.86€
Rating 8.0
Release 04 Feb 2009
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 -84% 2.64€
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 -77% 4.72€
Rating 8.3
Release 23 Sep 2008
Space Empires V Space Empires V is the latest edition in the Space Empires series. This new chapter completely updates the UI and takes the player into a real-time rendered 3D universe. Watch space battles played out in glorious detail and realistic effects. Expand, Explore, Exploit, and Exterminate in a huge living breathing galaxy.

Price -98% 0.53€
Rating 6.9
Release 16 Oct 2006
X3: Reunion X3: Reunion continues the epic space saga, blending deep space trading and intense real-time combat. Explore a vast universe, establish your empire, and shape the new frontier. With enhanced graphics and intricate economies, it's a journey of strategy, simulation, and interstellar intrigue.

Price -89% 1.13€
Rating 6.9
Release 21 Jul 2006