Agricultural sectors worldwide face a critical generational gap, with aging farmer populations and declining youth engagement threatening food security and rural sustainability. This research investigates gamification as a strategic intervention to enhance youth participation in digital agriculture. We developed and implemented a comprehensive gamified agricultural learning platform integrating game mechanics, progressive challenges, social collaboration features, and real-world farming simulations. A mixed-methods study involving 847 participants aged 15-35 across seven countries evaluated engagement metrics, knowledge acquisition, and behavioral intention toward agricultural careers. Results demonstrated that gamified interventions increased platform engagement by 312% compared to traditional e-learning modules, improved agricultural knowledge retention by 67%, and enhanced positive attitudes toward farming careers by 54%. Participants exhibited sustained engagement over twelve months, with 73% maintaining active platform use and 41% initiating real-world agricultural projects. Structural equation modeling revealed that achievement systems, social recognition, and practical application opportunities significantly predicted continued participation (R²=0.78). The platform's integration of precision agriculture technologies, market simulation, and community-based challenges created immersive experiences that transformed perceptions of agriculture from labor-intensive drudgery to innovative entrepreneurship. These findings demonstrate gamification's efficacy in bridging the agricultural generational divide, offering scalable solutions for youth engagement in sustainable food systems.