The first-person shooter genre used to be called Doom Clones because they were all viewed as rip offs of Doom (which, to be fair, many were). Genre conventions are created by copying what others have done. Souls is a game series, which has been so influential that it became a genre.
China's internet is upset that a knock-off of its darling video game, 'Black Myth: Wukong,' is listed on Nintendo's store (www.businessinsider.com)