Piffsy - Piffsy is a social network platform that helps you meet new friends and stay connected with your family and with who you are interested anytime anywhere.
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.
Vircadia - Vircadia is an open-source and decentralized real-time VR creation platform for university, enterprise, social, and OpenSim users.
IMVU - IMVU is multiplayer online video game created by ‘IMVU Inc’.
VRChat - Create and play in virtual worlds with others
Onverse - Onverse is game that includes a huge three dimensional world for you to explore.