Instead of Fantasy and Sci-fi, I went with a Vrmmo theme that would actually be relevant, something along the lines of GTA 5 but Vrmmo, and better....
The main character is the creator of the game, but when he is imprisoned for a crime he didn't commit his computer throws him into the game world that he helped create. He takes the place of his crime-lord counterpart, but he soon learns that it wasn't just him that was thrown into the game, the entire city was!
If you like Mature fictions with : Slavery, Violence, Gore, Sex, Language Problems, A Harem, Crime-lords, Sociopaths, and a healthy serving of pure unadulterated bad-ass for your main character, step on up, because this is the book for you...