Online learning has become a trend in today’s digital age. Accessibility, flexibility, a wide variety of learning resources, collaboration and communication, and the use of technology and innovation are reasons for the increasing popularity of online learning. However, student engagement is often low and requires innovative solutions to increase it. This study aims to develop and analyze the effectiveness of gamified Learning Management Systems (LMS) in increasing student engagement in online learning. The research method used is the ADDIE model, which consists of Analysis, Design, Development, Implementation, and Evaluation. The subjects of this study were students of one of the private universities in Indonesia who attended online lectures during the pandemic. Data collected using questionnaires, observation sheets, and interview guidelines were then analyzed using descriptive statistics. The results showed that gamified Learning Management Systems (LMS) was able to increase student engagement in online learning. However, technical limitations and inadequate institutional support were barriers to implementing gamified LMSs. In conclusion, developing gamified LMS can be an effective alternative strategy to increase student engagement in online learning and positively influence their academic performance. Overall, this research contributes to the development of gamified LMS in Indonesia and provides insight into the effectiveness of gamification strategies in increasing student engagement in the online learning environment.