Hello!! We do plan on expanding this into a real game after a proper recode since the code itself is a mess, but to reply to you for a moment...
The main gameplay loop was going to be that you could gain more money through curses, and then you could use the money to spend on upgrades, to get more money and survive longer to get closer to the objective ... though as you've seen we ran out of time. Honestly? A lot is planned and so post-game jam I've already begun working on a new version of the game.. It's been a fun first game!
I do like the observation and I thank you for sharing your thoughts, I will look into this and see if some good ideas spark out of it ^^