“Our initial plan for the Azurite Mine was that you would have a separate one per character,” the studio says. “This way you would get a unique Delve experience with each character you create, and could Delve at depths appropriate for that character’s power level. It’s clear from feedback and retrospection that we were wrong with this decision, and that the ability to have multiple characters access the same Azurite Mine would be an overall improvement to Delve.”
Consequently, the new plan is to make the mines account-wide, so all of your toons can access your deepest accessible mine. Sulphite, however, will still not be shared across characters. GGG originally wanted to discourage farming acts nine and ten for sulphite, but it admits it “didn’t manage to hit the correct balance” on drops.
“In order to correct this, we are going to rebalance both Sulphite gain from higher-tier maps, and Sulphite costs in the mine. Higher-tier maps will grant significantly more Sulphite, but their corresponding depths will cost more Sulphite than before. We will also make map item quantity bonuses affect Sulphite gain. We want it so that playing harder content is always worthwhile. In order to compensate for the larger amounts of Sulphite that you will have, we will increase the caps on Sulphite at all upgrade levels. We will also cap the Sulphite costs per Delve past depth 1000 so that it doesn’t require exponentially more map play in order to progress as you delve really deep. After these changes, playing high-tier maps will be way more efficient as a means of farming Sulphite, so grinding Quarry will not be the best way to get progress in Delve.”
So there you go – good feedback, good results.