Croquet OS

Croquet is a software system for creating multiuser digital experiences on the web. It lets you build real-time multiuser apps without writing a single line of server code, or deploying or managing any servers. Croquet OS is available as a JavaScript library that grants access to our global network of public reflectors. These reflectors provide seamless cross-platform real-time interactivity to any user with a network connection and a web browser.

Read Croquet Documentation Get Your Free API Key

Higher-level Frameworks

While Croquet itself is independent of any specific UI framework, we provide our own frameworks that build on top of it.

Microverse Builder

The Croquet Microverse Builder is a tool that lets build you shared Metaverse worlds with a few lines of code. It is implemented using the Worldcore engine (see below), which sits on top of the Croquet kernel (see above). It will be released soon, and its documentation will be available here. In the mean time, please watch this demo.

Read Microverse Documentation Watch Microverse Demo


Worldcore is an entity-management system that sits on top of Croquet. It makes it easier to wrangle large numbers of 3d objects in a multiuser app. Watch Croquet's Chief Creative Officer, Brian, and Chief Architect, Vanessa, discuss the fundamentals of Worldcore for the Experimental Gameplay Workshop at GDC 2021.

Read Worldcore Documentation

Croquet Virtual DOM

The Croquet Virtual DOM is a high-level framework that extends the core capabilities of Croquet. It’s a set of tools for writing Croquet applications that use a browser’s DOM as multiuser interface elements. Yoshiki Ohshima gave a talk on Croquet and the live programming functionality built into the Virtual DOM Framework. The talk was in Japanese but you can turn on the English subtitles.

Read Virtual DOM Documentation

React Bindings

The Croquet React bindings is a simple framework for using Croquet together with React.js. It allows to write the Croquet's View side code in React that works with the Croquet Model code.

Read Croquet React Bindings