OpenAL - OpenAL is a cross-platform 3D audio API appropriate for use with gaming applications and many other...
Unity - The multiplatform game creation tools for everyone.
Wwise - Game audio engine, designed to give artists more control and save programmers' time.
Unreal Engine - Unreal Engine 4 is a suite of integrated tools for game developers to design and build games, simulations, and visualizations.
Shiva Engine - Shiva Engine is a cross-platform development solution.
Havok AI - Havok AI is a runtime SDK for programmers and designers to create pathfinding, pathfollowing, and navigation mesh generation for dynamic environments.