Can confirm firedragongt's comment. Dmg seems to be calculating as a percentage. (5,6 DMG with LVL 53). Also: Dying Hero with more than 10 HP gets revived with 10 HP only. Having 50k gold still does not allow you to buy next hero.
Been afk for a while. A quest appeared, but I did not accept it. After 30 seconds it did not disappear. Although I tried to accept it. Guess, that ruined the data: I had 4 active quests, but now there was only 1 shown. It said it was complete, but wanting to obtain the reward opens the panel to abandon that quest. There was no way of clicking that box away, so I refreshed. Guess, what happend? -> Welcome Bug
Also, creating a new character leads to a duplicate of the first character, so if you create a 2nd character, there will be 3. But deleting slot 2 (the duplicate) it will remove slot 3.
Monster's spawnrate should be considered regarding quests. If there are 2 monsters with rates 80 and 1, why would quests ask you to kill nearly the same amount?
Same Problem like Summer Match 3: No progress at all. Game idea is simple and expandable - like add some obstacles, non-moving, moving, add some abilities - like double jump, throw wool at enemies, if appearing etc.
I'm a simple man and I like simple games. But honestly, not that simple :(
Music/Design is neat, but gameplay does not evolve at all. All you get from the first second is what you will get. No special orbs, no bonuses. Thus can entertain for some minutes.
"John! Over there! We are surrounded by a bunch of enemies" - "Nvm, let me grab that important 200$ first!"
John dies* "Who will grab those items now?" - "Well, I can't!" - "Ok, let's ignore that legendary weapon then..."
 "Firestone Idle RPG"){kind=icon}
 "Voxel Clicker"){kind=icon}
 "Idle Rpg Adventure"){kind=icon}
 "Puzzle Block"){kind=icon}
 "Cannon Clicker"){kind=icon}
 "Ragnarok Idle"){kind=icon}
 "Jumpy Sheep"){kind=icon}
 "Summer Match 3"){kind=icon}
 "Robot Wants Ice Cream"){kind=icon}
 "Idle Sword"){kind=icon}
 "Tap Heroes"){kind=icon}
there will be eventually!