Open Cobalt

Open Cobalt
Developer(s)Community source and Duke University
Initial release2009
Written inSqueak Smalltalk
Operating systemmacOS, Windows, Linux
Available inEnglish
Type3D Browser, Virtual world, 3D computer graphics
LicenseMIT
Websitewww.opencobalt.net

Open Cobalt is a free and open-source software platform for constructing, accessing, and sharing virtual worlds both on local area networks or across the Internet, with no need for centralized servers.

The technology makes it easy to create deeply collaborative and hyperlinked multi-user virtual workspaces, virtual exhibit spaces, and game-based learning and training environments that run on all major software operating systems. By using a peer-to-peer-based message passing protocol to reduce reliance on server infrastructures for support of basic in-world interactions across many participants, Open Cobalt makes it possible for people to hyperlink their virtual worlds via 3D portals to form a large distributed network of interconnected collaboration spaces. It also makes it possible for schools and other organizations to freely set up their own networks of public and private 3D virtual workspaces that feature integrated web browsing, voice chat, text chat, and access to remote desktop applications and services.

Open Cobalt uses the Squeak software environment, which is an open-source Smalltalk system freely available for Windows, Mac and Unix. As is true of almost any Smalltalk application, Open Cobalt has identical functioning on any supported platform. As a Smalltalk system, it can usually be updated while the system is running without needing a restart.