To be clear, I have not tried it with any sophistication. Its just as DM/GM, and if you can get the LLM to accept that DM/GM is the last word, aka GOD,, then you can maintain the world..keeping things on the rails better. But its something I am thinking about for alpha play-testing tabletop modules. My brother and I have a side business (Hexbrawler Games [1]) and we are currently writing a Maussritter[2] mouse TTRPG adventure hexcrawl set in 1930-50's Appalachia.

[1] https://hexbrawler.com/

[2] https://mausritter.com/ A great game!