A great list of suggestions! We attempted to do some changes with Room leveling, but our implementation did not go as planned. In future, if we add more levels, we will definitely work with players to discuss the best way for that to work.
Early in the game, at around 3 total Dungeons, players get the ability to automatically collect Resources, with the push of a button. You can do this from the Overworld in the Dungeon tab. Or, from any Dungeon, by opening the Overlord’s Ledger.
The team has mulled over some mini game elements to earn things in the game. I will let them know players are interested.
Also, the avatar has been discussed. Perhaps it’s something they can look into again.