Create, Share, and Play Card Games — Anywhere

Design custom card games, play with friends online or locally, and publish your creations. CGS is a flexible tabletop sandbox for players and creators.

No account or registration required, including for online multiplayer.

Play Now — Web How to play

Why CGS?

Fast prototyping: Author cards with JSON or visual tools.
Cross-platform: Windows, macOS, Linux, iOS, Android, Steam, and Web.
Community-driven: Publish and discover games in the CGS ecosystem.

Create

Author games using the CGS spec or the UI — perfect for designers and hobbyists.

Play

Load a deck, move cards on the table, and follow your game's rules with friends. Learn the controls and how to host or join a game.

Publish your game to cgs.games. Others can play, fork, and give feedback.

Join the community

Find us on GitHub, Discord, Reddit, and more. Help shape the roadmap or ask for help.