Awesome! Probably one of my favorite submissions. I liked how you introduced the player to the game... tell him about what is his goal, but at the same time speaking about the game designers (or "gods") task to do this. The sound and overall atmosphere... lighting and other effects are just awesome. I enjoyed playing that game a lot... Thank you.
I've unfortunately not much to give you as a hint for improvements, except: More LEVELs! Give me more levels... and maybe some intermediate conversation with the god of that game... there are quite a few possibilities as letting the player discover other worlds... maybe a brighter outside-the-cave world... slowly changing the atmosphere and adding more and more details to it ... things to interact. But thats more for how you can continue working on that project after the Jam is finished.