Really sad this mod is dead I was actually thinking how cool it would be to have a ST mod in MC with the Upside down.
Hey all! I was really disappointed about this dying as well, so I made one of my own! It's more horror based than this, but so far it has both the monster and the Upside Down! The Upside Down is actually a really complex design, as it is within the same exact world rather than a different minecraft dimension.