Toontown Rewritten - Toontown Rewritten is a Free to Play, Browser-based, MMORPG, and Virtual-World video game developed and published by Disney.
VRChat - Create and play in virtual worlds with others
Neopets - Neopets is an Amazing, Virtual World, Massively Multiplayer Online, Role-playing and Fantasy-based video game developed and published by Viacom.
Spatial - Collaborate from anywhere in AR
Chimpoo - Chimpoo is an Amazing, Massively multiplayer Online Role-playing and Browser-based video game developed and published by Games2Win.
Gather Town - Spatial video-chat worlds for work and play