Some visual novels do not limit themselves into merely interactive fictions, but also incorporate other elements into them.
An example of this approach is Symphonic Rain, where the player is required to play a musical instrument of some sort, and attain a good score in order to advance.
More importantly, visual novels do not face the same length restrictions as a physical book.
For example, the total word count of the English fan translation of Fate/stay night, taking all the branching paths into account, exceeds that of The Lord of the Rings.
With dating sims becoming more popular on steam and I am wondering is there are any good ones to play.