Fun game. It reminded me a lot of Lored. I wanted to provide some feedback on mechanics that felt monotonous.
Jail Cap, Blood Cap, Mine Capacity are progression limiters, but getting enough iron is too time consuming early in the prestige. It makes the middle game a chore. The only reprieve is Dark glass but that comes too late. I recommend rotating the upgrade resource (Money, blood, grease, heat/ash, etc.) on these limiting upgrades.
I was always running out of heat. Generating was never the problem, I was always generating more heat than I could store. When tasks are running quickly, even 150 heat is used up in just a couple minutes.
Later in the game, getting anything action below 0.5 seconds doesn’t actually increase it’s speed. This is because the game waits for the animation to finish before giving the resource (mining and compressing ash are big culprits).