The theme was 10 seconds. The game is called "George RR M&M's Twitchy Thrones" and it's a real-time strategy game where the population grows every 10 seconds, so speed is of the essence.
If you'd like to try it (I'd love it if you did) download it here: http://onceabird.com/ft/TwitchyThrones.zip
XNA Framework 4.0 Redistributable is needed. Download here: http://www.microsoft.com/en-us/download/details.aspx?id=20914