Farama-Foundation/PettingZoo

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

A toolkit for developing and comparing reinforcement learning algorithms.

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

Puffing up reinforcement learning

A library of reinforcement learning components and agents

OpenSpiel is a collection of environments and algorithms for research in general reinforcement learning and search/planning in games.

Tensorforce: a TensorFlow library for applied reinforcement learning

High-quality single file implementation of Deep Reinforcement Learning algorithms with research-friendly features (PPO, DQN, C51, DDPG, TD3, SAC, PPG)

An elegant PyTorch deep reinforcement learning library.