This unique time inspired the development of Legends of Adventura, a Christmas themed cooperative video game. Players take on the roles of two elves whose urgent mission is to save Christmas in a small town. To succeed, they must battle Christmas spirits, defeat the Krampus, and unravel the village's hidden mysteries. The project covers the conception and visual realization of the game’s core mechanics. The primary focus is the development of a dynamic 2-player coop system based on teamwork, asymmetrical abilities, and puzzle-solving. Additionally, narrative level structures are woven into the christmas world, accompanied by a clear, immersive User Interface (UI). The projectalso includes character, level, and world design, executed through written documentation, sketches, illustrations, and 3D visualizations.