I'm not sure what other have put but here are some things I have found that may or may not be intended:
With the 2 "overflowing" artifacts, you double your gold every 1.5 hours from interest. This is basically the only way to get any increase in money late game (1 trillion+).
The tier 6 prestige upgrades are kind of unbalanced because there is no use in separating your PP on all 6 different types, its better to just sink them into one because there is no increase in price as you upgrade them. I only upgraded the demodwarfs because they are overpowered for some reason and now every gold I spend on those demo dwarfs are multiplied by those PP I put in (also I spent some on upgrading coins but other than those 2)
Ascending is also kind of overpowered because if I have the 200 starting PP and then gain 50 more and then Ascend its like I have bought half of my tier 6 upgrades again, meaning If I have 500 tier 6 upgrades and then basically get 50 PP and Ascend I can get what's equivalent to 250 upgrades (or 1500 PP worth of upgrades)
Also the runners have winged cloud slippers with skates and rocket attachments on their robo-rhino feet and apparently they do some weird stuff to elven feet while they rest so idk what's going on there. They are completely useless however because the demodwarfs act as a constant earthquake plus that guzzler thing means I get all the gold. The gold is useless however because I only get money increases from the interest.
When buying stuff that is 1 billion or more it shows up as 1000m which I guess is just late game being weird and me playing the demo too far, but when I get 1 scientist per 35 calamities and 1.8 calamity multiplier it ends up being some real large number. The gold doesn't do this however so maybe you just haven't gotten to it idk.
Having more than 100 mithril or unemployed dwarfs makes them overlap the icon. Kinda annoying, but also the only reason I have that many is because I can't spend them anyways so it doesn't matter.
With the explosives kit, it sounds like if you let the game run for a month or 2 and you just bought spelunkers using interest to get money you could eventually get to 50% mountain damage from every spelunker meaning you could defeat a mountain no matter the health in 2 spelunkers, is the max 300% thing apply for that too? Does the max 300% apply for the Mapped Destruction? If so why does the counter go past 300, and if not, could you just destroy a mountain with theoretically infinite health with 2 spelunkers? Idk just some thoughts for end game. maybe if you do sit and get 5000% mapping you deserve to wreck mountains like that? (if that's the case though none of the tier 6 PP upgrades matter)
What's the point of the anti-rock turrets if the magnetic shield thing for lasers does it better (across the whole map) did I miss something there it just feels like spending money on something that doesn't damage the mountain when your lasers do and you can spend the money there
TLDR: great game! I love it and definitely wish-listing