More than one hundred methods for developing greater intimacy, resolving conflicts, improving communication, and enhancing sexual and recreational activities are detailed here in a unique compendium of "games" for adults in relationships. 10,000 first printing.
I wish I remember under what context this book was recommended to me because most of it is not at all applicable to single people. That being said, there are some interesting games in here. A few of them seem like they would be kind of fun to play with someone and a lot of them seem like they would be incredibly weird to play with someone.