Fastest way to hard badge I found: Get the Alchemy/Tailor/blacksmith caves to 5 skulls, do not collect the final chest. Use them to farm red chests (alchemy always has one) and gold (blacksmith gets you 4k a pop minimum). Juice alchemy to 1000 by grinding out the lowest healing potions. Juice artistry by experimenting, putting one cheap item in, and creating. Holding shift you don't have to keep selecting the item. With alchemy and artistry at 1000 oil of enhancing is 60%. Go to the old thrown and get Rulers edge. Enhance the dice on it and you're quickly 1 hit killing everything.
I gave this a hell of a go. Maxing incoming best I could, maxing research best I could. Left the computer on and running, and it's STILL days of waiting for the next thing. Dev? I'm playing a game, I'm not waiting like this. This game would be perfectly the same without the bullshit if you could max everything in 7 days, there is no reason I need to wait 3 or 4 days just to bank up.
I've been using this game as my "just chatting" game for years now. I love the thought that creepers scroll over my name and it announces "DON'T TOUCH MY BOOOBS"