Multi-player Atari 2600 games (both cooperative and competitive)

Cooperative graphical games developed by us, requiring a high degree of coordination

Classical games including card games, board games, etc.

Configurable environments with massive numbers of particle agents

A set of simple nongraphical communication tasks originally from

https://github.com/openai/multiagent-particle-envs

3 cooperative environments, originally from

https://github.com/sisl/MADRL