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.
Gather Town - Spatial video-chat worlds for work and play
ActiveWorlds - Activeworlds hosts a Universe of over 500 3D virtual reality worlds.
VRChat - Create and play in virtual worlds with others
Habbo - Hobbo is also known as ‘Hobbo Hotel’.
Topia - Create amazing wallpapers for your iPhone