VGChartz’s Taneli Palola: “Books have, historically, not been the most popular medium when it comes to adapting existing works into video game form. Countless movies and TV shows have received their own video games, but books have never been quite as popular. Perhaps the reason is that books are inherently more difficult to adapt into video games than other, already visual mediums like films. However, that’s not to say that there aren’t any great video game book adaptations out there.”
Source: N4G PC Top 10 Best Games Based on Books