This project will test the feasibility of an electronic game for preadolescents, delivered via inexpensive Android smart phones. The game is informed by socio-behavioral and pedagogical theories, evidence-based practice, and formative research on youth sexual culture in sub-Saharan Africa. It is designed to: educate young players, ages 11-14, about sexual health and HIV/AIDS; build risk-reduction skills and related self-efficacy for prevention of HIV, sexually transmitted infections (STIs), and unintended pregnancy; challenge harmful gender norms and HIV stigma; and foster dialogue with parents and caregivers.