This project will develop and test a novel intervention to improve HIV treatment adherence among young adults with HIV who attend an HIV clinic in Kumasi, Ghana. The intervention is called incentivized Text-Based Adherence Game (iTAG). It is delivered solely via text messages and includes many advanced features including a point system that rewards participants for responding to texts, a scoreboard that compares participants' progress with each other, and messages on a range of health and HIV-related topics. To evaluate iTAG, we will recruit 20 young people, ages 18-24, with HIV (YPWH) to complete 90 days worth of intervention text messages. Before and after receiving iTAG messages, they will complete computer assessments used to measure HIV medication adherence as well as other factors believed to be influence adherence such as social support. By examining participants score from before and after receiving the intervention, and by talking with participants after they receive the intervention, we hope to understand whether iTAG is acceptable to YPWH and could potential lead to improvements in their HIV treatment adherence.