Cross-Platform C++ GUI Library
A wxWidgets GUI Builder
Develop desktop GUI applications using PHP, HTML5, JavaScript
Enabling Windows Subsystem for Linux to include support for Wayland
Qt based cross-platform GUI proxy configuration manager
UCI chess engine
Avogadro libraries provide 3D rendering, visualization, and analysis
Open-source data modeling tool designed for PostgreSQL
Open-source engine for Heroes of Might and Magic III
Open source RGB lighting control
An open source digital image forensic toolset
Multi Theft Auto is a game engine
Hello, Dear ImGui: unleash your creativity in app development
3D GPUs Strange Attractors and Hypercomplex Fractals explorer
Graphical User Interface Toolkit for Python with minimal dependencies
Cross-Platform C++ 2D/3D game engine
Source code repository of the FreeOrion project
Parallel OS, with GUI, Terminal, OO Assembler, Class libraries
The libgphoto2 camera access and control library
Third-party TI-84 Plus CE / TI-83 Premium CE emulator
User interface for recording and managing ETW traces
Free game engine for development of desktop, mobile, and web games
A game of dungeon exploration, combat and magic
Dillo, a multi-platform graphical web browser
Multi-Joint dynamics with Contact. A general purpose physics simulator