Fun game! I actually liked it so much that I submitted it: https://news.ycombinator.com/item?id=30866681
The map gets a bit hard to read for the 3-emoji rooms, though. Screenshot (spoilers!): https://i.imgur.com/4yDGeN8.png
I also nearly lost because I didn't go back after getting the gold key, but that might be on me, haha.