For the game we're working on, instead of going for a sort of JSON/YAML/CSV-type of serialization, I've rebuilt the world entirely in uxntal's native words, and it makes for a pretty neat definition of the map. A bonus is that the assembler flags all unused labels and so makes sure that every room is connected to the rest of the world.

I had doubts in the beginning, but it turned out fine. 💯

https://git.sr.ht/~rabbits/oquonie/tree/master/item/src/world.tal