The bottom and the edge of the map hold the most potent pre-hardmode gear.
The ore you didn’t get (e.g., Tin if your world has Copper) cannot be found naturally—only from crates or extractinators. all items in terraria map
First, a critical truth: Why? Evil biomes. Your world spawns with either the Corruption or the Crimson , but not both naturally. That means items like the Vampire Knives (Crimson Chest) and the Scourge of the Corruptor (Corruption Chest) are mutually exclusive without artificial creation (e.g., using a second world or biome seeds like “Drunk World”). The bottom and the edge of the map