It's amazing just how nuts you can go within the Dwarf Fortress game engine. I spent ages building my wooden stilted fortress entirely out of lumber. Farms were created by hauling buckets of water up onto the roof to make mud and plucking wild berries for seeds to plant.<p>Another fun consequence of the game engine is how the creature generation created Zombie Sharks all by itself. According to the game's rules, any creature can be zombified, and one of the results of this is that the creature no longer needs to <i>breathe</i>. You haven't known fear until you have seen zombie sharks flopping along on land, heading your way.