Monsoon is a game of collaborative creativity for urban water solutions. Through this innovative game, middle and high school students are trained to maintain the peak performance of GSI projects recently installed by the City in their communities. The game has students build their own decentralized infrastructure networks with the competitive goal of mitigating the most flooding by accruing the greatest number of high performing sites. Student motivation and agency to actively implement learning outcomes in their communities was evaluated through pre and post surveys. The paper concludes that by educating young, citizen-architects about new paradigms of infrastructure in their city, they can advocate for implementation and monitor long-term performance of decentralized solutions within their community. Young citizen-architects can be trained and empowered by professional and academic architects to promote and sustain new designs for decentralized infrastructures in our cities.