HackFight
http://hackday07.tokofu.com
"Fight people based on your internet usage, a game of strategy, skill and second guessing how cool your opponent is"
Slifeshare | Share your digital life
http://www.slifeshare.com
"A Slifeshare is an online space where you share your digital life activities such as browsing the web and listening to music with your friends, family or anyone you care about."
Passively Multiplayer Online Games
http://www.passivelymultiplayer.com/PMOGPaper.html
"Passively Multiplayer uses user data and device-use history to generate avatars and/or game moves in an online multiuser environment."