While in this decade cities will grow exponentially to host more than half of the world population, architects are not yet ready to design adaptive urban models capable to react to this phenomenon. “Encrypted mega-cities” is a seminar that provides an opportunity to think critically about urban potentials responding to this growth through a mode that utilizes analysis, computer advanced tools and the tactical intuition of the architect in a rapid manner. Student’s results have combined theoretical, mathematical and empirical research approaching to future urban models such as ecosophy city, the city of needles, destiny of density, instant city, multilayered city or mobility flow responsive city. Tutor: Pablo Ros Assistant: Alexander Dubor