By the time he was 14, he had co-written the specification for RSS -- originally Rich Site Summary, now Really Simple Syndication -- a Web-publishing technology for delivering syndicated content from frequently updated sites, such as blogs or news websites.

CNN: How Aaron Swartz helped build the Internet

The premise of the game is simple enough - in the role of mayor, you must build and run a city designed entirely to your specification.

BBC: Screenshot from SimCity 4 courtesy of EA Games