Inspiration has to come from somewhere and finding something in which the source of inspiration was something as wonderful as a book or a game is definitely a good starting point. The greatest thing about this sort of deal is that once one is finished, the inspirational content can be gone back to and experienced.
It sometimes is useful in understanding the settings, unusual plot points, or just general mechanics within the game or book. Sometimes there are nods and Easter Eggs to fall back on that would…

