Unicorn CPU emulator framework (ARM, AArch64, M68K, Mips, Sparc
Capstone disassembly/disassembler framework
3D game engine/framework in C, with Luajit and Python bindings now
MLT Multimedia Framework
Powerful embedded Lua Engine for IoT devices, with many components
4kb procedural graphics using GLSL
Declarative rich internet application platform