Movie Star Planet - Movie Star Planet is an Online Virtual World, MMO, and RPG Simulation by MovieStarPlanet.
InWorldz - InWorldz is an Amazing, MMORPG, Virtual World, and Social Networking Simulation.
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.
MySims Kingdom - MySims Kingdom is based upon The Sims series but provides special and extremely different gameplay to the original series making it definitely worth your consideration.
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’.