Idle or incremental games combine the best and worst of games in one. I used to play them an insane amount of time often 10 at once. Usually the dopamine rush of upgrading dropped very quickly when you hit a progression wall. I usually abandoned it and started the next, to keep the upgrading dopamine hits coming. It was a weird time and I was kinda addicted but at some point just got incredibly bored. Impressive how detailed and extensive some idle games are though!