Unicorn CPU emulator framework (ARM, AArch64, M68K, Mips, Sparc
Improved Quake III Arena engine
Public repository of the Micro QuickJS Javascript Engine
Ultra-lightweight JavaScript engine for the Internet of Things
The PHP Interpreter
Bloat-free Graphical User interface for C++ with minimal dependencies
Powerful development framework for creating virtually anything
Lua Virtual Reality engine
Efficient binary-decimal & decimal-binary conversion routines for IEEE
A tiny JavaScript runtime
3D game engine/framework in C, with Luajit and Python bindings now
Simple DirectMedia Layer
CGL (C Game Library) is a multipurpose library
Capstone disassembly/disassembler framework
MLT Multimedia Framework
Lexbor is development of an open source HTML Renderer library
Dynamic Instrumentation Tool Platform
A multi-posix-platform abstraction layer for creating desktop apps
A real time inference engine for temporal logical specifications
Industrial Strength NoSQL Application Development Platform
Orx: Portable Game Engine
database library/engine
A Forth compiler with a little difference
Implementation of Tcl for the CLR.
Development toolkit for Web Services and XML data bindings for C & C++