Free and Open-source
Multiplayer Framework

Own your authoritative game servers. Versatile for any genre or platform.

npm create colyseus-app@latest ./my-server

Meet Colyseus Features

  • Automatic state synchronization.

  • Match-make clients into game rooms on demand.

  • Scale to millions across different game rooms.

  • Authoritative server to prevent hacks on the client.

  • Leverage the ever-growing JavaScript ecosystem.

  • Open-source, under the most permissive MIT License.

Join our growing community

683K+ Downloads
5.3K GitHub Stars
80 Contributors
2.6K Members

Deploy your servers in minutes

Colyseus Cloud is ready to serve hundreds and thousands of CCU. No ops required.

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