Metastream - Watch streaming media with friends
VeeR VR - Global VR video community
Watch2Gether - Watch2Gether is an app that allows multiple people to watch the same content simultaneously and interact with each other while watching.
Talansoft - Create 3D/AR apps without coding on all platforms
Hyperbeam - A better way to watch together online
Reason - Reason is a program that you can use to create music.