Awesome game, I sense some Caves of Qud inspiration perhaps? unbelievably impressive for a solo dev to make this in less than a week.
the jam's theme isn't very prominent imo, it seems like a really cool trading-based roguelike and "what's behind the door" is only loosely connected.
This game has a great visual style, music, UX, the gameplay loop is addictive, and i love the wacky character designs. there's something so compelling about making an investment, taking a risk, and then reaping a reward, and this game captures it very well.
regardless of its relation to the jam theme, you should be really proud of what you've made here, sometimes one must detour from guidelines in order to make something great