This handbook offers essential insights into Problematic Online Gaming (POG) and supports the use of the Early Detection Instrument (EDI) within school settings.

It presents key findings from a cross-country research study carried out by the GameOver partners in Lithuania, Greece, Spain, and Bulgaria, exploring the causes, early signs, and impact of POG among students aged 12–16.

In addition to the research results, it provides prevention and intervention strategies adapted to real-life educational contexts.

Teachers, school professionals, and support staff can use this resource to better understand risk factors, identify vulnerable students, and respond early and effectively using evidence-based approaches.