Three Facebook games that should be on your radar this week

Social media app tracker Appdata just published this week's Top Twenty Gainers in the social game space. In other words, these are games that should be on your radar as they could get popular rather quickly.

Not to mention a good amount of these titles break the mold of the traditional--yet extremely effective--business, city or farm management games. Let's take a look at some of the top, unique games that are gaining traction this week.