Island Survival is a solo open world survival prototype created in Unreal Engine 5, built around gathering resources, crafting tools and structures, managing hunger and thirst, and fighting predators while exploring a fully hand crafted island. The world includes sculpted terrain, painted foliage, atmospheric lighting, water systems, and a smooth day and night cycle that shapes the pacing of the game. Players collect wood, stone, and environmental loot to craft weapons and tools like axes and pickaxes, while building walls, floors, and beds through a clean snapping and placement system. Combat centers on surviving tiger attacks, supported by simple AI built in Blueprints and a responsive player controller that handles movement, harvesting, combat, and interaction. A clear, intuitive UI tracks hunger, thirst, health, tools, and resources, creating a polished survival loop driven by meaningful systems and clean feedback. This project demonstrates full ownership of survival mechanics, AI behavior, crafting, building, UI/UX, and environment creation in UE5.