Since tier II mines have tools, do they also have a higher yield per tick? Don’t have the feeling it is.
If you are talking about the Deep Mines, they have - as far as I know - less output per worker than the regular mines.
Oh, is it that bad, that makes no sense.
From a gameplay perspective, I think it’s about the trade-off; you either get a finite supply with faster work-rates or you get a an infinite supply with slower work-rates.
Aha, is that it, I found it is better to mass purchase from the market, but its sometimes hard to have it delivered on random intervals, maybe I should start requesting coal and iron as tradegood.
Deeper mines require more overhead and it takes longer to get to the bottom, so more in-mine travel time.
I took a look at my current settlement just now - I have both a deep sand pit and a deep clay pit and a regular sand pit and a regular clay pit. All of them are fully staffed. Presently, the deep sand pit produces about 250 units a year and the deep clay pit produces 300 units. Whereas both the T1 pits produces about 200 units.
So it seems like you get quite a bit more bang for your buck with T1 mines.