The number of years an author could earn from adapting a web novel into a mobile game depended on many factors, such as the popularity of the novel, the development of the mobile game market, the author's financial strength, and so on. If the novel was very popular and the mobile game market was very strong, the author might earn a lot of money for a long time. However, if the novel was not well-known or the mobile game market was not prosperous, the income of the author might be limited. In addition, the author's financial strength was also an important factor that affected his income. If the author had a large fan base or strong marketing ability, he might get more income. On the other hand, if the author's financial strength was weak, his income might be lower. The number of years a web novel author could earn by adapting it into a mobile game depended on many factors. There was no definite answer.