Experimental (stable, go here: https://github.com/benelot/pybullet-gym) ...
Igneous is an open source game engine written in C++.
A Minecraft mod that aims to add realistic physics to Minecraft
Bullet Physics Injection for Source SDK 2013
C API for Bullet Physics
Rcs is a set of C and C++ libraries for robot control and simulation
(Alpha Stage, work in progress) An open-source 3D virtual creature evolu...