Where can I find palladium?

If you can't find any on your map, smash some more altars.

Here is a chart:

  • On a small map Palladium ore spawns below a depth of 760 feet (380 tiles).
  • On a medium map Palladium ore spawns below a depth of 1,100 feet (550 tiles).
  • On a large map Palladium ore spawns below a depth of 1,270 feet (635 tiles).

You can also fish for it in hardmode.