Devil's Island is a complete game mode plugin, designed to provide a bit more endgame content, and some structure to player interactions.
Players compete to be the Boss, who can place a tax on resource gathering. Being Boss has its obvious advantages, but he also has a huge target painted on his back; everyone knows where he is (to within about 150 meters). Kill the Boss to become the Boss - it's that simple.
Players can also rebel against paying taxes, but the Boss will then know their...