Moondust

Moondust is a non-canonical VR technical demo developed by Valve to showcase the functionality of the Knuckles EV2 VR controllers. The demo was released on June 21, 2018 and can be found on Steam under the name Moondust: Knuckles Tech Demos, rather than Moondust. Moondust consists of four mini-games.

Background
Moondust takes place in the Portal universe. With moon-based conversion gel stores running dangerously low, Aperture looks to the stars for a new source of the valuable portal conductor. Take control of a giant robot on the moon, spearheading the Aperture Lunar Resources Initiative. This demo utilizes all of the new inputs of Knuckles and showcases a few new game mechanics enabled by the new controller.

Rock Crushing
Crush moon rocks by clenching your hand.

BuggyBuddy™
Drive a buggy around the map with the controllers. If you drive over the map, the buggy will restart to the original position.

Space Station Construction
Create a space station in the orbit of the moon.

Throwing Range
Throw bombs. Clench the bombs to activate the timing function