I played this game for WAY too long. I absolutely love incremental games. The gameplay was incredible and it was fun to just play and upgrade. The upgrade unlocks felt a little poorly paced. I felt like at one point, I got tons of new things all at the same time, and then I was completely unable to get big unlocks until I could regularly iron and copper.
I also didn't quite understand how it tied to the theme. I never felt like I was risking much, and it didn't feel like there was much benefit to staying any longer in a run than I needed for the next upgrade.