After checking the Internet, you will probably find several resources such as

• https://github.com/mohammadasghari/dqn-multi-agent-rl
• https://rlss.inria.fr/files/2019/07/RLSS_Multiagent.pdf
• https://arxiv.org/abs/2011.00583 and others.

Try to understand the principles first (see above). After some reasonable amount of coding you can adapt OpenAI gym. Good luck!

Update 17 March 2022:

You may want to check this popular repository as well https://github.com/Farama-Foundation/PettingZoo

After checking the Internet, you will probably find several resources such as

• https://github.com/mohammadasghari/dqn-multi-agent-rl
• https://rlss.inria.fr/files/2019/07/RLSS_Multiagent.pdf
• https://arxiv.org/abs/2011.00583 and others.

Try to understand the principles first (see above). After some reasonable amount of coding you can adapt OpenAI gym. Good luck!

Update 17 March 2022:

You may want to check this popular repository as well https://github.com/Farama-Foundation/PettingZoo

Update 06 August 2023:

The best multi-agent tutorial I have seen so far comes from RLlib documentation. See RLlib for muti-agent RL.

After checking the Internet, you will probably find several resources such as

• https://github.com/mohammadasghari/dqn-multi-agent-rl
• https://rlss.inria.fr/files/2019/07/RLSS_Multiagent.pdf
• https://arxiv.org/abs/2011.00583 and others.

Try to understand the principles first (see above). After some reasonable amount of coding you can adapt OpenAI gym. Good luck!

After checking the Internet, you will probably find several resources such as

• https://github.com/mohammadasghari/dqn-multi-agent-rl
• https://rlss.inria.fr/files/2019/07/RLSS_Multiagent.pdf
• https://arxiv.org/abs/2011.00583 and others.

Try to understand the principles first (see above). After some reasonable amount of coding you can adapt OpenAI gym. Good luck!

Update 17 March 2022:

You may want to check this popular repository as well https://github.com/Farama-Foundation/PettingZoo