Happy Onlife is a game and a toolkit targeting teens to develop digital safety and security skills and knowledge. Happy Onlife has been made of citizens’ engagement in its entire life-cycle. During dedicated workshop, students, teachers and parents were involved in each steps of the development of Happy Onlife concept: diagnostics of the needs; development, validation, assessment and adoption of resources. Happy Onlife opens research and resources to citizens. All published and released under creative commons licenses, Happy Onlife material can be freely used and reused.