Unity - The multiplatform game creation tools for everyone.
PortAudio - PortAudio is a cross platform, open-source, audio I/O library.
Godot Engine - Feature-packed 2D and 3D open source game engine.
OpenAL Soft - OpenAL Soft is an LGPL-licensed, cross-platform, software implementation of the OpenAL 3D audio API.
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
JUCE - JUCE is a wide-ranging C++ class library for building rich cross-platform applications and plugins...