Choose your own adventure style AI’s?

This question has likely been asked a lot, but regardless, I’ve been doing a lot of research recently into AIs capable of generating stories based on your input. To be clear, I’m simply looking for an AI capable of story generation and interaction, no need for advanced mechanics like dungeons and dragons, just an AI that I can give a prompt to, it can begin to write a story, and will respond and steer the story based on my responses.

ChatGPT seems to be alright at this, but not only have I heard that it tends to lose memory of specific details after a while, but that there are both usage limits and also seemingly a limit on individual conversations.

As far as I can tell, AI Dungeon is the best option, but getting the full experience of that costs an expensive subscription. I’m just making this post to make sure there are no obscure AIs that are good at this for cheaper or even free.