Great game. Let me give you money on steam! A few suggestions:
I think you should start with less dwarves, getting almost 10 immediately isn't satisfying (maybe move some to a tier 1 prestige upgrade).
The first few prestige upgrades give you a ton of free dwarves that you can't spend for a while because of the expensive gold costs. Golden Inheritance could give a flat +500 gold or something on top of scaling per PP so it isn't useless earlygame, and/or reduce the earlygame prices for hiring dwarves.
The text black outline option doesn't appear on a lot of text.