There are a lot of 5/10 games that are successful on Steam because the devs set the right expectations for the experience.
Recently Vampire Survivors comes to mind. Definitely a 6/10, but something about the balance of no-effort art and masterful game tuning makes it VERY sticky.
That's fighting talk round my way!
There's something they've got incredibly right between the no-thinking gameplay and the gradual progression through the various secrets and unlocks. I thought I'd grown tired of it after finishing the base game and not being bothered about gold farming, but I bought the DLC the other week and I was instantly hooked again.
I get that the art was a no-effort import, but everything else about that damn game is a good illustration of something that only seems simple because it's exceedingly well done.
In fairness, isn't is specifically meant to look like a ported Italian game with laughably incorrect translations?