Crafting

Summary

 * The first crafting floor Unlocks at Area 9 and costs 1 000 coins;
 * The second crafting floor costs 50 000 coins;
 * All crafting floors can be boosted either with drones or for gems;
 * You can boost Crafting floors 12 hours for 10 gems.

Crafting

 * You must craft stuff to level up your drill, build stuff, and so on.
 * For Special Builds like Computer, Tesla, Plane, etc... go to Quests.
 * Oxygen comes from making Hydrogen, which means anything you do involving Hydrogen comes with Oxygen for free. This most often comes up below when you realize that each Refined Oil implies 5 Oxygen on hand, meaning a Compressor implies 10 Oxygen and a Plastic Plate implies 5 Oxygen.  This means Optic Fiber only consumes 5 more Oxygen than you made anyway for its materials, and Oxygen Cylinders involve making 10 more Oxygen than you spend.  In general, anything you make that requires Refined Oil has an excellent profit per second, but you will be harshly limited by the fact that the best possible speed for refined oil is 1 unit every 1600 seconds (26 minutes, 40 seconds).

Note that in order to maintain the ability to analyze items for profit margins, rares have been assigned an arbitrary value of 1 billion coins.