PaintBook Game is a Unity 2D/3D casual game template where players color, paint, and decorate objects, characters, or scenes. Featuring intuitive touch controls, multiple brush types, and vibrant visuals, it offers a relaxing and creative gameplay experience. The project includes level progression, score tracking, customizable palettes, and modular scripts for easy integration. Optimized for mobile and desktop with URP support, PaintBook Game allows developers to quickly create a polished, engaging, and visually appealing coloring game in Unity.