OpenSAGE is an open source game engine that aims to be a re-implementation of SAGE, the RTS engine used in Command & Conquer: Generals and other RTS titles from EA Pacific.
OpenSAGE: 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.
This project is being developed with an initial focus on Command & Conquer: Generals and Command & Conquer: Generals Zero Hour. Support for other SAGE-based games may come later. The primary development target is Windows, with support planned for macOS at a later date.
Two days ago, version 0.2.0 was released as the first build with initial cross platform support across Windows, Linux and Mac.
It has also added support for OpenGL, Metal and Vulkan is a work in progress as well. This release also rewrote the DataViewer to use ImGui, they added a unit selection prototype and improved the in-game UI.
Find it on GitHub.
While it's extremely early days for the project (nowhere near playable yet), it's great to see another. Hopefully in time, it could become as fully featured as game engines like OpenMW, OpenRA, CorsixTH and many more that allow us to play classic games on modern systems.
As someone who never got a chance to play Command & Conquer: Generals, I shall be following this project closely with great interest.