If an author uses humor and satire to describe a video game, their purpose could be:
1. To entertain their reader: One of the main reasons for using humor and satire is to entertain the audience. By incorporating these elements, the author aims to make the reading experience enjoyable and engaging for the readers.
2. To convince their reader to agree with their perspective: Humor and satire can be used as persuasive tools to convey a message or point of view in a light-hearted manner. Through humor, the author may try to influence the reader's opinion on the video game or a particular aspect related to it.
Therefore, in this context, the possible purposes of an author using humor and satire to describe a video game could be to entertain the reader and to persuade the reader to agree with their perspective.