Movie Star Planet - Movie Star Planet is an Online Virtual World, MMO, and RPG Simulation by MovieStarPlanet.
Playstation Home - Playstation Home is a Massively Multiplayer Online, Fantasy-based, Virtual-World and Social Simulation video game created and published by SCE London Studios.
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.
Active World - Active World is a Fantasy-based, Virtual-World and Social-Networking Simulation.
Virtual Villagers - Virtual Villagers collection is a selection of life simulation games.