HighTide's More Advancements is pretty self-explanatory honestly. All this mod does is add some new achievements to make 100%ing the game a bit longer of a task. I also aim to expand on some sections of the game that lack advancements like The End. As of right now (Wednesday, August 14th), development has focused on the Overworld as compared to any other dimension at the moment.
As I said in the section above, HighTide's More Advancements mainly focuses on the Overworld at the moment. As for what it changes, it adds some advancements to Minecraft to make it a bigger game in general.
