VRChat - Create and play in virtual worlds with others
Hologram.cool - All-in-one WebVR creation
Spatial - Collaborate from anywhere in AR
Volu by Volograms - Create content in AR with real humans.
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.
HoloBack - Create and share holographic videos