According to App Store Review Guidelines 4.1 "copycat", developer cannot breach this clause. Buy unfortunately there are hundreds of developer that breach the clause including the big publisher like ketchapp and apple never took an action against it. one example is Ballz copy of swipe break breaker, not only that they even plagerized the phrase " the champion of time killer". But it seems there are few clause that indie developer can breach it too if big publishers are breaching it.