OSVR - Features an open-source platform aimed to work with any VR-Gaming product, and is focused to provide game engine plugins to support and facilitate the development of VR-enabled games.
Coated - A world made of colors, coat yourself to solve puzzles
Hubs by Mozilla - A WebVR experiment from Mozilla Mixed Reality
Speedcube - A simple and elegant Rubik's cube solve timer
Interlude - "New world of storytelling" - with interactive videos
Cube Buddy - Rubik’s Cube learning aide for beginners