PettingZoo

An API standard for single-agent reinforcement learning environments, with popular reference environments and related utilities (formerly Gym)

PyTorch version of Stable Baselines, reliable implementations of reinforcement learning algorithms.

A training framework for Stable Baselines3 reinforcement learning agents, with hyperparameter optimization and pre-trained agents included.

PyBullet Gymnasium environments for single and multi-agent reinforcement learning of quadcopter control