Open Source Game Codebases

A collection of original open source game codebases, open source game rewrites, and niche open source game engines.


Open Source Game Originals


Open Source Game Rewrites


Open Source Game Engines

  • OpenRA is a real-time strategy (RTS) engine for early Westwood games such as Red Alert, Command & Conquer, Dune 2000 (source code)
  • OpenSAGE is a free, open source re-implementation of SAGE, the 3D real-time strategy (RTS) engine used in Command & Conquer: Generals and other RTS titles from EA Pacific. (source code)
  • openage is a clone of the Age of Empires II engine (source code)