With AfterEffect you pick your story. Whether you want to start after a nuclear disaster, some biological disease that thinned everyone out, some bloody war has ravished the landscape and now all that is left are ruins, or maybe some kind of zombie apocalypse has struck and now its up to you.
This is the current game world. As you can see, the water tiles seem to be at different heights to eachother. This is because we have created a little animation for the water so it is not just static.