I've been working on this map for about 6 years, and while it's far from complete, I decided to release the current world file.
So far we have the Coliseum, the Great Temple, the Fountains of Wisdom, and the Protodermis Falls and Great Furnace as works in progress. Have fun exploring and let me know if you have any questions!
where's download link?
Oh biscuits I forgot to add it, hang on.