I think this is fake. Besides the loading screen which looks nice, nothing else looks good.
Why it could be fake:
- Video is in really bad quality, making most of the file names unreadable.
- The game starts in full-screen, don't think they will do that, but that's debatable.
- The Intro is kinda amateurish. ( based on the trailer graphics they should be able to do better )
- Not a lot is shown, this could easily be made in a few hours
- The wallpaper which is used is the first wallpaper at https://hytale.com/media
- They only show the loading screen and intro
Why it could be real:
- Loading screen looks nice
- Download speeds change
- It's Russian, those damn Russians man, you never know!