Steel is a unique mineral which can only be obtained through the forge. It is the strongest mineral in the game and can be used to create many different tools. Its used for advanced buildings and tools.
- Mine iron and smelt that for iron
- Get 3 medium rocks, a wall and 2 iron to make a forge
- Mine more iron and smelt them, the drop them through the small 2x2 hole thingie
- Smelt the unfired steel to obtain the steel.