Xash3D FWGS is a game engine that aims to extend and provide compatibility with the Half-Life Engine. It is a heavily modified fork of the original Xash3D Engine. The engine supports multiple platforms, including Windows, Linux, BSD, and Android. It also offers better multiplayer support, multiple renderers support, and an advanced virtual filesystem. Xash3D FWGS allows for different input methods and includes features such as TrueType font rendering and PNG & KTX2 image format support. To install and run the engine, users can either use the provided binaries or compile the engine from the source code. Contributions and issue reporting are accepted in both English and Russian. The engine utilizes the Waf build system and has specific build instructions for different platforms.
https://github.com/FWGS/xash3d-fwgs