Sunny dictator-sim Tropico 4 is out soon, and the latest trailer gives a look at the new natural disasters added for the sequel. Volcanoes, droughts and tornadoes will appear periodically to tear up your towns, which could contain some of the twenty new buildings, including stock exchanges, shopping malls and aqua parks. There have been some additions on the international stage, too, with the addition of new superpowers. Find out more on the Tropico site . The game's out on August 30.