Free 32/64/16-bit multi-platform Pascal and Object Pascal compiler
3D Engine c++
A multi-format module player and library
A multimedia framework based on Qt and FFmpeg
Java UI Framework for Desktop/iOS/Android
A cross-platform interpreter for many point-and-click adventure games
Useful crossplatform library for distributed systems
A protocol agnostic application layer denial of service attack.
Apache Cordova framework for showing websites as mobile apps