This document discusses tools for sustainable urban development created by Mistra-Urban Futures, an international center. It describes a pilot project called Urban Games that uses gamification and visualization tools called 2021 and UrbaniaBeta to facilitate communication between young people and decision makers. UrbaniaBeta is presented as a lightweight, open source, and easy to use visualization tool built on Google Maps that allows instant documentation. The discussion emphasizes the importance of tools being fun, easy to use, low cost, and centered around testing with users to support sustainable urban transformation.