Like all idle games, it's fun for the first couple hours, then becomes a monotonous slog that begs you to through money at it. Through the first and second prestige, I felt like I was making progress through the dungeon every run. It was fun and Grindy, but not unbearable. Then I went through third prestige and the game came to a screeching halt. It became way too grindy and everything is expensive and hours of idle grinding is required.