OurWorld - OurWorld is an Action, Great Online Virtual World, Social Interaction, MMO, and RPG Simulation by Flow Play.
Movie Star Planet - Movie Star Planet is an Online Virtual World, MMO, and RPG Simulation by MovieStarPlanet.
Yoville (YoWorld) - Yoville or formerly known as YoWorld is an Action, Browser-based, MMO, RPG, Single-player and Multiplayer, Social networking and Virtual World Simulation developed by Tall Tree Games.
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.
The Legend of Pirates Online - Pirates of the Caribbean Online is an Action MMORPG, Exploration, Virtual-World, and Exploration Simulation developed and published by Disney Online.
Gaia Online - Gaia Online is 3D Social Networking, Virtual World, and Browser-based Simulation.