What’s the difference between a Survival Island map and simply playing single player survival mode? It’s simple really. A user generated Minecraft world (that is to say, a world generated when the user elects to ‘start a new world’ is a vast place full of resources. If one doesn’t find what one wants in one location, one simply keeps moving. A Survival Island map is an entirely different kettle of fish. For one, it is usually put together using MC Edit or a similar Minecraft world editing program and it is designed with limited resources.