OpenRA is an open-source reimplementation of Westwood’s Command & Conquer Red Alert game engine, updated to use the hardware acceleration of modern video cards using OpenGL.




The best free alternative to Command & Conquer is OpenRA, which is also Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to Command & Conquer and 15 is free so hopefully you can find a suitable replacement. Other interesting free alternatives to Command & Conquer are Widelands, CaesarIA, openage and Dune Legacy.
OpenRA is an open-source reimplementation of Westwood’s Command & Conquer Red Alert game engine, updated to use the hardware acceleration of modern video cards using OpenGL.




Widelands is a free, open source real-time strategy game with singleplayer campaigns and a multiplayer mode. The game was inspired by Settlers II™ (© Bluebyte) but has significantly more variety and depth to it. Still, it is easy to get started through playable tutorials.

CaesarIA is an open source remake of Caesar III game released by Impressions Games in 1998, it aims to expand the possibilities of the classical city-building simulators and to add new features showing the city life. Now the game work with Windows, Linux, Mac, Haiku and Android.




Free (as in freedom) open-source RTS Age of Empires engine. Written from scratch in C++, Python, Cython, Qt/QML, OpenGL/GLSL, Vulkan, ...


Dune Legacy is an effort by a handful of developers to revitalize the first-ever real-time strategy game. Based from Dune II




Littlewargame is a medieval-themed HTML5 Real-Time-Strategy game with multiplayer mode and a map editor. It runs completely in your browser without any download required.




Mental Omega is a free unofficial expansion pack for Command & Conquer Red Alert 2 Yuri's Revenge. It started off as a balance modification. After a few years, it had grown into an unofficial sequel.




Spring:1944 is a WWII themed game based on the open source Spring Engine. Our goal is to create four fully functional sides (US, Germany, USSR, Britain) with period-accurate units and strengths. Realism is a primary design goal, second only to creating a game that is fun and...

Experience Warfare Incorporated, the critically acclaimed and best selling mobile real time strategy (RTS) game, FREE! Build your forces to defend and control the newly discovered planet Icarus, with its astounding mineral wealth and mysterious alien artifacts, in both...




LandGrabbers, recognized as the Best Casual Game of the Year at the 2011 Russian Game Developers Conference (KRI 2011)!




Build your empire and journey through the ages: With Forge of Empires, we bring our award-winning strategy game to your iPad and iPhone. Build your city and develop it from the Stone Age to modern times (and beyond).




Pro: easy to install but you need the original CD/DVD. Some cheats you can use, for having a good time after working Good graphics, modern resolutions Con: Till now I as not able to play the Funpark missions. Playing as and against dinosaurs.
Overall I recommend OpenRA. But I also own the Originals.