T The use of online games among children under the age of 13 is rising alongside the advancement of digital technology. while these games offer benefits for entertainment and learning, unsupervised use carries risks of negative impacts—such as addiction, emotional disturbances, reduced social interaction, and exposure to age-inappropriate content and communication. this study aims to design an educational campaign to raise parental awareness regarding the importance of supervising children while they play online games. a qualitative research approach was employed, utilizing data collection methods that included a literature review and interviews with child psychologists and parents. the data were analyzed using the 5w+1h method and design analysis to inform the development of a visual communication strategy. the research culminated in the \\\"main cerdas\\\" (play smart) campaign, featuring instagram as the primary medium, supported by infographic posters, website advertisements, and merchandise. the campaign utilizes a friendly, bright, and simple visual concept to ensure the information is easily understood by the target audience. through this campaign, it is hoped that parents will gain a better understanding of the risks associated with online gaming and be able to implement appropriate supervision, enabling children to engage with games safely, healthily, and wisely.