This game's difficulty is mostly set on preparation pretty much, much more than other games. Compared to Terraria where a fight with, for example, skeletron on mastermode, is still really hard even if it's your 5th time fighting him with all the best loot and arena preparation. That's probably why the most enjoyment you'd get from a game like this is your first time playing. They just need to add good difficulty settings be it sliders or a set difficulty, so boss fights like bonemass's aren't made trivial with just a potion and mace.