Neopets - Neopets is an Amazing, Virtual World, Massively Multiplayer Online, Role-playing and Fantasy-based video game developed and published by Viacom.
VRChat - Create and play in virtual worlds with others
Bin Weevils - Bin Weevils is a 3D virtual game made for kids to explore.
Spatial - Collaborate from anywhere in AR
SocioTown: Uninvited Guests - SocioTown: Uninvited Guests is a free-to-play, multiplayer online experience published by Outside The Box Software.
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.