Oh, I got confused at first, I think it's writing the story out in Chinese on purpose as a kind of hidden state...? Clever approach. I can't tell what the background color shifts represent, and they are a bit abrupt, but I like the concept.
The default with LLMs are more collaborative storytelling than what we'd normally call a "game", but I think there's some new game genre waiting to be discovered.
It's possible to have a more structured substrate to an LLM text adventure, though also a lot of work... I wrote up my own thoughts on an experiment here: https://ianbicking.org/blog/2025/07/intra-llm-text-adventure
The default with LLMs are more collaborative storytelling than what we'd normally call a "game", but I think there's some new game genre waiting to be discovered.