This research aims to design and develop an Educational 3D Adventure Game to inform users about organic and non-organic waste. The development method used is MDLC (Multimedia Development Life Cycle), which includes Concept, Design, Material Collecting, Assembly, Testing, and Distribution stages. The game was successfully created for the Android platform using Unity3D. Testing results with 22 respondents from Gedang Rowo Village showed a positive response, with an approval rate of 90%. Media experts evaluated it at 68%, while content experts approved it at 100%. These results indicate that "TrashHero" is an engaging and interactive medium for educating users about organic and non-organic waste. Using the Likert scale, the game was found to have achieved a high level of success. Therefore, "TrashHero" is considered an effective educational tool for conveying information about waste while providing an interactive experience for users. Keywords: 3D Adventure Game, Education, Organic and Non-Organic Waste, MDLC, Testing, Interactive.This research aims to design and develop an Educational 3D Adventure Game to inform users about organic and non-organic waste. The development method used is MDLC (Multimedia Development Life Cycle), which includes Concept, Design, Material Collecting, Assembly, Testing, and Distribution stages. The game was successfully created for the Android platform using Unity3D. Testing results with 22 respondents from Gedang Rowo Village showed a positive response, with an approval rate of 90%. Media experts evaluated it at 68%, while content experts approved it at 100%. These results indicate that "TrashHero" is an engaging and interactive medium for educating users about organic and non-organic waste. Using the Likert scale, the game was found to have achieved a high level of success. Therefore, "TrashHero" is considered an effective educational tool for conveying information about waste while providing an interactive experience for users. Keywords: 3D Adventure Game, Education, Organic and Non-Organic Waste, MDLC, Testing, Interactive.