This study investigates the prevalence and psychological impact of Internet Gaming Disorder (IGD) among adolescents in Andhra Pradesh, India. Utilizing a cross-sectional design with 845 participants aged 14-21 years, the study explores the relationships between IGD, depression, anxiety, and stress. Data were collected using the Internet Gaming Disorder Scale–Short Form (IGDS9-SF) and the Depression, Anxiety, and Stress Scale-21 (DASS-21). Findings indicate a significant prevalence of IGD, particularly among males and rural adolescents, correlating strongly with psychological distress. Late adolescents (18-21 years) exhibit higher IGD rates, attributed to increased academic pressures and autonomy. The study underscores the need for targeted interventions to address the intertwined issues of IGD and mental health among Indian adolescents, emphasizing the influence of demographic factors and the significant impact of gaming on psychological well-being. Results highlight the importance of developing comprehensive strategies for prevention and support to mitigate the adverse effects of excessive gaming and improve adolescent mental health outcomes.