Second Life - Second Life is a virtual reality platform where individuals interact in a virtual world. The software was developed in 2003 by Linden Labs. More than one million people now regularly use the software.
Habbo - Hobbo is also known as ‘Hobbo Hotel’.
Stardoll - Stardoll is an Amazing, Free-to-play Online Browser-based, Virtual World Simulation published by Stardoll AB, Mattias Miksche.
IMVU - IMVU is multiplayer online video game created by ‘IMVU Inc’.
Movie Star Planet - Movie Star Planet is an Online Virtual World, MMO, and RPG Simulation by MovieStarPlanet.
Vircadia - Vircadia is an open-source and decentralized real-time VR creation platform for university, enterprise, social, and OpenSim users.