“…Definitions of game-based learning (GBL) vary. Systematic reviews of research include GBL (a) on its own (Jabbar & Felicia, 2015), (b) in relation to online learning environments (Tsai & Fan, 2013) and virtual worlds (Pellas & Mystakidis, 2020), (c) associated with digital technologies or digital game-based learning (DGBL, Chang & Hwang, 2019), and (d) applied to specific environments, such as Augmented Reality (ARGBL, Pellas et al, 2019). Respectively, definitions of GBL in these systematic reviews include learning (a) that occurs in digital or nondigital game worlds (Jabbar & Felicia, 2015); (b) that includes "any initiative that combines or mixes video games and education" (Tsai & Fan,p.…”