Can the mechanism of foreign games be patented?

Of course. According to Baijiahao's information, foreign game mechanisms can apply for patents, and different countries have different patent application conditions. The same game mechanism can be successfully patented in the United States, but it cannot be approved by the Patent Office in China. Secondly, too vague gameplay, such as RTS and other specific game types, naturally cannot be patented, but subdivided gameplay mechanisms (such as players' unique matching methods and unique gameplay rules) can be successfully patented.