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.
Tynker - Game Worlds for Kids to Learn Programming
VRChat - Create and play in virtual worlds with others
Scratch - Scratch is the programming language & online community where young people create stories, games, & animations.
Vircadia - Vircadia is an open-source and decentralized real-time VR creation platform for university, enterprise, social, and OpenSim users.
Kodeclik - Kodeclik is an online coding academy for Kids and Teens.