Nanotechnology is the Final Wonder available, and is the only wonder able to be built at the end of the Future Age at this time, although other icons for Future Wonders are hidden. It is described with this slogan, "Nanobots give your Empire the power to cure the most dangerous disease, accelerate construction projects and make your armies even stronger". This needs to be defended during its build time, to prevent the construction timer from being reset. Once it is built successfully, the game enters an apocalyptic phase that will require players to log in frequently in order to keep their empires alive.