I’m not coming at this from some kind of ethics/copyright perspective, I think it’s totally fine to rehash the same idea. I’m just surprised they sell so well when I look and think “why would I buy this, I basically already have it”. The particular example I’m thinking of is a series called Overcooked which is a co op time management game and right now one of the hot sellers on steam is called Plate Up which seems to be basically the same thing at a similar level of polish.
The real learning I guess is to not be discouraged by existing products, because they don’t seem to prevent you from succeeding even when you can’t quite define why yours is better than the rest.
This applies to the real world a lot too. If you have a lot of competitors in your space, it's a good sign because the market has already been validated. It's obviously best to be the first in a good market but it's hard to predict whether the market is good when you're the only one playing.
In games I think the principle applies even more because gamers often want to play more of the same and once they finish all the Overcooked content another game that fills that need will work. Plate Up has also gotten popularized by many streamers and YouTubers playing it.
I think a much more common reaction people have to titles is "why would I buy this, it isn't like what I already have."
Definitely no need to be discouraged if a game you want to make already exists, but "same game with different polish" is not the case with games in question...
Overcooked has specific arcade levels each with their own infuriating gimmick. You either can beat it or you cant.
Plate Up, despite having similar mechanics (place food onto stove to cook it), is quite different. You have to take orders yourself, clean up after customers, and you win money that you use to upgrade the kitchen. That alone makes it a very different game than Overcooked's arcade levels.
I'll probably buy it.
It can also quickly turn into a Factorio-type game once you start automating the cooking of the food. Which sounds boring, if all you’re doing is serving, but it then turns into a game almost similar to Guitar Hero once you get into the overtime rounds because you’re having to put into muscle memory all of your actions with higher intensity in the later rounds.
Then there’s the insanity of automating cooking /and/ serving.