Open-source client and server library for OPC UA
Open-source LZNA compressor (dictionary with nibbled ANS and optimal parsing).
C++, Kinect, interactive multi-touch display, realtime rendering
Cross-platform API-agnostic C++ UI library
Stable rigid body dynamics, joints, springs, trimeshes
Dynamic realtime 3D visibility determination library
Interactive runtime OpenGL debugger
Scripting language and bytecode VM
C#, WinForms, hex editor with structures