SDG Master is a mobile game developed under the Erasmus+ partnership in adult education Sustainability Coaches, led by VNB e.V. (Germany), alongside Eco-Logic (North Macedonia), Synthesis (Cyprus), and CSCI (Italy), aiming to equip trainers and community educators with the skills to become "Sustainability Coaches." These coaches will guide and inspire communities to take meaningful local actions with a global perspective, fostering sustainable practices that benefit society on a larger scale.