What makes users want to share a game? Here is all the cases when I ever did: - I was asking my friends for new games in specific genres - my friends discover

What makes users want to share a game? Here is all the cases when I ever did: - I was asking my friends for new games in specific genres - my friends discovered less known, but excellent games. Never casual games. That's it. What I observed is that games are so diverse and people have different taste, my friends or family play different games that I am not interested in and they are not interested in what I play. Also I noticed a huge difference versus movies or music: people with similar taste can enjoy playing different games. That makes recommending games very different than recommending a good movie or TV show. Nobody cares if I play Sudoku or not, but I am telling anyone if I discover a new Scifi series that is good and not already famous.