I want to recommend Runestone Keeper, i really do. But i can't in good conscience. I had a few hours of fun with it, but that's not enough. The game is flawed at its core:

Upgrades

Gold is used both for permanent and single-run upgrades. The permanent upgrades take a lot of gold to upgrade and without them you can't influence much how far you can get. This means you logically don't want to buy items in-game because it feels like you're wasting money. There should've been separate currencies.

Classes

You start with only a single character/class unlocked, the "warrior". He can be built to use melee or ranged weapons. Magic and wands are not his thing. Unlocking other characters is prohibitively expensive or difficult. Imagine if in Diablo you could only pick the Warrior or Barbarian until you completed Nightmare difficulty solo. Playing as the same guy over and over again gets boring after a few hours.

Randomness

A single powerful enemy usually means the end of your run. The last time i died i faced an epic ranged enemy that revealed four (!) other ranged enemies. It wasn't even remotely reasonable. This also makes you unwilling to buy items that only work for a single run. It's easy for the money spent to be completely wasted.

Another annoyance is that you can try to build an archer or wizard only to not find bows or wands. Or the other way around, of course.

Runestone Keeper is fun and it has the "just one more go" factor that makes you want to keep playing it. But as with many indie games the grind is too much. I just don't get it guys. Why make me pay 10000 gold to unlock a single character? I don't think i even made that much in the 5,5 hours i played it. :/