This game is nearly everyday on the front-page of reddit/digg/etc... , and a lot of people are making youtube videos of their creations. With all this web cover

This game is nearly everyday on the front-page of reddit/digg/etc... , and a lot of people are making youtube videos of their creations. With all this web coverage he doesn't need to spend money in advertising :). A game that makes people build something (even if useless, it's still a game) and make it easy to share, instead of bovinely click around like in Zynga's games. Recipe for success?