hytopia
The HYTOPIA SDK makes it easy for developers to create massively multiplayer games using JavaScript or TypeScript.
partyserver
Build real-time applications powered by [Durable Objects](https://developers.cloudflare.com/durable-objects/), inspired by [PartyKit](https://www.partykit.io/).
rune-sdk
Build a multiplayer game played by millions! Your game runs inside the Rune app with 10 million installs across [iOS](https://apps.apple.com/app/rune-games-and-voice-chat/id1450358364) and [Android](https://play.google.com/store/apps/details?id=ai.rune.ti
json-joy
Collection of libraries for building collaborative editing apps.