1. Take the job "Retro Miner"

  2. Choose your Pickaxe and smash it on the rocks

  3. Purchase a RockCrusher, a Conveyorbelt and a Refinery

  4. Put a Refiner - Crate under the Refinery

  5. Purchase a Melter and fill it with Coal and refined ore

  6. Wait for your ore to be molten in to Ingots and put them in a Storage Crate

  7. Go to a Metal Buyer and sell your StorageCrate