With the aim of outreaching my research as well as practicing my teaching skills, I decided to volunteer to give lectures in my department (Department of Social, Political and Territorial Sciences, University of Aveiro). The two professors that accepted to have me as a guest in their course both proposed the same day- the 21st May! After some doubts, I decided to accept the challenge: after all, my idea was to play a game with students, so it wouldn’t too tiring… I thought! A low-cost and fun game We played the Tragedy of the Commons game. This is a very known game useful to explain the theory of the Tragedy that Hardin wrote about in 1968. I played it myself at my Masters through a computer game, but my colleague Elgars told…