“…Most authors tend to describe the EER activity as "gamification" (Sanchez et al, 2017, Li et al, 2019, Pérez et al, 2019, Leon et al, 2020, Lopez-Belmonte et al, 2020, Bistulfi, 2021, Dugnol-Menéndez et al, 2021, Santos and Moura, 2021 although others as a "serious game" (Mystakidis et al, 2019, Brown et al, 2019. In both cases, students are meant to be motivated and engaged by the activity, and there has been extensive research on their differences (Mayer, 2016, Macías-Guillén et al, 2021.…”