I've seen quite a few posts on here similar to my question, but I am still having doubts about my implementation of an Easter Egg.
In the background of my game, There is a bookshelf, purely for cosmetic purposes. Because it's got books in it, I wanted to have names on all the books, as references to either real-world books, or fictional books in media.
Real World Books:(These ones all have the authors names included on the cover)
I-Robot D&D Monster Manual Rendevous with Rama
Fictional Books:(No Authors, Because they're fictional)
The Necronomicon (From many H.P Lovercraft Stories) The Enchiridion (From Adventure Time) Gray's Sports Almanac 1950-2000 (Back to the Future)
Books Imagined by Me:
Graboid Hunting for Beginers (Graboids are monsters in Tremors, but this book does not exist in the movies) Aperature Science Employee Handbook (Aperature Science is the corporation from Portal, but this book does not exist in the games)
So, My question is, is it "acceptable" to simply mention names of real-world or fictional works in a background asset such as this? Or is even that going to far? My confusion comes from the fact that i'm not using any of the writing or artwork from the works, simply stating the name of the title.
If someone could please give my some guidance on this, I would greatly appreciate it.