Point & click social game
Context
In a point and click game the player assumes the role of protagonist in an interactive story driven by exploration and puzzle-solving instead of physical challenge. Nearly all adventure games are designed for a single player, since this emphasis on story and character makes multi-player design difficult
Insight
He (Sean Ryan, director of games partnerships at Facebook) said there are many under-served genres on Facebook such as hidden object games. There are just a couple of hidden-object games on Facebook, where there are 150 or so on Big Fish Games’ casual web site...
source Facebook game leaders: We’re not worried about Google+ games
Idea
Adventure game where your friends are part of the story and you have to find clues using a spyglass that only reveals them when you hoover over one of the characters' face.