Pymunk is a easy-to-use pythonic 2d physics library
This software is a particle effect editing tool
CGL (C Game Library) is a multipurpose library
Barcode scanning library for Java, Android
Bar Code (1D or 2D) generator in pure Ada
VR Adrix Java Works - Paged Lists - Action-Entity Model ...
Delphi : VRCalc++ OOSL & + (Paged List, TextEditor, VRAstroVision ...)
A simple, physics-based animation library
Real-time multi-person keypoint detection library for body, face, etc.
Unity Post Processing Stack Library
All Gang of Four Design Patterns written in Unity C#
A JavaScript game library to quickly develop board games for the web
LGPL GML parser
Clint is a library for Qt projects to create charts, trees, etc.