There is a teaser for episode 5 that can be download for free here :
https://store.postudios.com/products/the-silver-lining-haunted-castle-experience
"Dare you enter the Haunted Castle of the Crown? Get a look at some of what lies ahead in Episode 5: A Thousand Times Goodnight (Coming in 2017!) in this playable teaser of a transformed Castle with scares lurking around every corner! Find the pieces of Pandora's Box to unlock a special look into what lies ahead....
Playable on PC and VR-compatible with the HTC Vive. "