Open source, lightweight, cross-platform 2D and 3D game engine implemented in C++ and released under the MIT license. Created by developers, for developers. U3D aims to give you the tools you need to stand up your game quickly, then experiment with and iterate on your game's design.
Recast/Detour Artificial Intelligence technology that handles character behaviors with modular sensory systems such as hearing and sight, and supports the requirements of the locomotion systems.