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Solipsis, open source decentralized Metaverse



"Solipsis is a pure peer-to-peer system for a massively shared virtual world. There are no central servers at all: it only relies on end-users' machines.

Solipsis is a public virtual territory. The world is initially empty and only users will fill it by creating and running entities. No pre-existing cities, inhabitants nor scenario to respect...

Solipsis is open-source, so everybody can enhance the protocols and the algorithms.

Solipsis is also an ongoing research work, as explained in this research proposal." (


Update description from home page, june 2009:

"A French R&D project (ANR-RIAM) leaded by Orange Labs, funded by ANR and Media & Networks cluster of Brittany, launched in January 2007 and based on prior works dating from 2000.

What are the Aims?

Create a public, massively-shared and user-generated unbound digital universe, sustained by a dedicated Peer-to-Peer protocol, with a modern day rendering engine and some great and accessible 3D modelling tools. In other words: a decentralized Metaverse platform.

Why a P2P Architecture?

Because servers are the bottleneck of every massively-shared applications, virtual worlds and online games. This bottleneck limits their scalability and bounds the freedom of the virtual world's inhabitants. As many others, we believed that a decentralized system is the solution to deal with the increasing size of this kind of application. Easy to say, hard to do."