Oh yes I also forgot to mention. One way I think progress could be made easier at higher levels, is to have adventurer spawn at slightly higher levels as you go on. Like for example, once you get to level 8, new adventurers spawn with level 2. And then again at level 20 they spawn at level 3. Something like that. Of course it should be balanced, but I feel like it's something a lot of games do these days.