The 6th ESSA Summer School in Social Simulation was successfully organised by Areng Littemberg, Erika Speelman and a team of Wageningen University on 21-25 September 2015 in Wageningen, NL. It included lectures by Andreas Ernst, Gert Jan Hofstede, Gary Polhill and Tatiana Filatova among others with more than 20 students coming from different countries and disciplinary backgrounds. Training included workgroups, hands-on exercises and student presentations. This video captures the exciting atmosphere of the school. A special thanks to the organisers!