“…Usually, educational activities require some intellectual effort, but at the same time, participants should be able to experience enjoyment and motivation (Khan & Pearce, 2015). Most educational games focus on the teaching process of a specific subject (Antunes et al, 2012;Barclay et al, 2011;Franco-Mariscal et al, 2015;Gutiérrez, 2014;Kavak, 2012;Lester et al, 2014;Martí-Centelles & Rubio-Magnieto, 2014;Russell, 1999). When playing "Find invasive seaweed," students can learn about marine science by acquiring knowledge about IAS and the importance of the marine environment.…”