Croquet is a powerful open source software technology that, in the form of the Croquet Software Developer's Kit (Croquet SDK), can be used by experienced software developers to create and deploy deeply collaborative multi-user online vitual world applications on and across multiple operating systems and devices. Derived from Squeak, Croquet features a peer-based messaging protocol that dramatically reduces the need for server infrastructures to support virtual world deployment and makes it easy for software developers to create deeply collaborative applications. Cobalt is a National Science Foundation-sponsored effort to create an end-user oriented open source virtual world browser and authoring toolkit application using the Croquet SDK.

Croquet's first multi-user WAN test at Boston University's High Performance Computing lab (David P. Reed at center, Mark McCahill, far right)

• Join the effort to build Cobalt, an open source metaverse browser and toolkit.
• Help us improve the code base by testing software and reporting bugs here
• Join the Croquet Consortium as an individual or institutional member.
• Contact us and let us know what you can do for the effort

Croquet capabilities demo. More movies here.

Cobalt: A new community-based Croquet application development effort.

• Consortium email address changed to croquetconsortium at gmail dot com (for spam filtering reasons)(July 2008).

• Duke's Julian Lombardi Receives National Science Foundation Award to Advance Cobalt (June 2008) More.

• Qwaq Makes Available XML Specification for Croquet-based Virtual Worlds (May 2008) More.

• Cobalt Metaverse Browser and Toolkit Pre-alpha Available for Community-Based Development (March 2008) More.

• Croquet Selected as Next Generation Immersive Education Platform (January 2008) More.

• Duke Receives $100,000 Mellon Award (December 2007) More.

• UNC Joins Croquet Consortium (December 2007)

• Intel Joins Croquet Consortium (August 2007)

• Earlier news