Box2D

Bipedal Walker

Car Racing

Lunar Lander

These environments all involve toy games based around physics control, using box2d based physics and PyGame based rendering. These environments were contributed back in the early days of Gym by Oleg Klimov, and have become popular toy benchmarks ever since. All environments are highly configurable via arguments specified in each environment’s documentation.

The unique dependencies for this set of environments can be installed via:

pip install gym[box2d]