Thank you! I'm glad you found it charming.
As for last part in the fungal age, it's not actually a mistake. Since it was an Easter egg I decided to break the fourth wall a bit and poke fun at the real Uru, that's why I wrote "D'ni" in that spot. There's so many times in Uru where there's a ladder that doesn't look like a ladder that it became a running joke with me and my friends. I thought it would be fun to include our joke in my own version of the game. (Btw, don't know if you're aware, but you can play Uru for free and multiplayer these days. The game is maintained by fans and periodically they add fan-made Ages.)