I think that isn`t bad, the swearwords are used habitually in the language in moderate quantity. The gamer doesn't think is right that if the game has a lot of swearwords, he can consideer the game really tacky.
Of course, "Wheels on Fire" has certain quantity of swearwords

CURIOSITY: In Spain, there is a organization called "Real Academy of the Language", that define the use of spanish language and the correct words and expressions. One of the people of this group, was a famous writter called Camilo J. Cela, He was famous for her vocabulary, that contained a lot of swearwords. He ever defended her vocabulary, becouse were formed by spanish words that are been recognized by the Real Academy of the Language and can be used.