mining, spelunking, iron ore, underground, caves, pickaxe, torches, spelunker potion, metal detector, cavern layer, natural light, side view, game graphics, Terraria, exploration, resource gathering, stone blocks, dirt blocks, hammer, chisel, ore veins, clusters, excavation, adventure, survival game, 2D world, pixel art, crafting materials, inventory, biome-specific, forest biome, grasslands, soft earth tones, ambient occlusion, dynamic shadows.