We're a little late to the party with this one but if you haven't heard of Farm Fortress just yet, now's the time to check it out. Described as a 'persistent online farming and fortress building game with seamless PvP/co-opt multiplayer' component, the game is set in the distant future where the illegal cultivation of certain 'medicinal' plants is, well, illegal. However, it's highly lucrative. As you might have guessed, you're going to have protect it. What's interesting about the whole deal is the fact that things do not stop when you log off - you're going to have to ensure your fortress is capable of defending itself when you're not there.

Curious? Check it out here.