fantasy map 3d model

Create a full open-world 3D game map design optimized for mobile devices. The map should be medium size, highly navigable, and contain multiple distinct biomes such as forest, desert, hills, and a small city area. Include natural terrain variation like rivers, lakes, mountains, cliffs, and hidden paths. Add interactive areas: villages, loot spots, NPC zones, towers, and small dungeons. Prioritize lightweight assets and simple geometry for better performance. Include an optimization plan: LOD levels, occlusion culling, light baking, minimal real-time shadows, and low-poly prop suggestions. Provide environment storytelling ideas to make the map feel alive: abandoned buildings, broken roads, mysterious caves, and hidden treasure spots. Include weather effects and a simple day-night cycle. Organize the output into sections: Map Overview, Biomes, Landmarks, Navigation Flow, Interactive Elements, Storytelling, Lighting & Weather, Optimization for Mobile, and Final Suggestions."