Ore

Ore is the most useful Resource because it can be used to upgrade Armor and improve Refinery efficiency, but mainly because it can be made into Supplies at the 3D Printer. (Imagine that!)

To find ore in the ground on Mars you'll need to use a Small Rover. Ore appears red on the map.

To obtain ore you will need to launch a Mineral Extractor from Earth, and build a Refinery to process the ore into your inventory.