Circle of Friends is an online photo sharing game. I worked on this game with Lauren Davino, Minah Kim, and Larissa Pickens.
The rules of the game are fairly simple. A circle of friends is formed, the moderator decides on a theme, and then all the members of the circle must post a photo in order to make the round of photos available. If any of the members do not post a photo, the circle will “die” -meaning the photos never become visible. If the circle is completed successfully, then and only then will the members be able to view the posted photographs and comment on them.
The circles can be as large or as small as desired though there are probably tipping points in how long circles will survive based on their size. Although the members do not necessarily need to be friends already; we found in playtesting, much of the conversation surrounding the photos was based on existing relationships. We found that inside jokes were referred to in the comments, and quite often the photos were discussed in a non-circle of friends environment weeks after the round had finished.
Circle of Friends is essentially a Php game which uses a MySQL database to store its data. It is an example of how games can intersect with social networking sites.