World 11 Has begun (Feb 1 2019)
Note: RoB wiki is currently trying to catch up with the World-11 game changes.


From Ring of Brodgar
LP Cost 6000
Skill(s) Required Mining
Skill(s) Enabled Deep Artifice
Required By Stone Column
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In-Game Text

"Caroubdin, High King
Demanded of his mountain realm,
In the third month of the Conflux,
Red Gold, and Blue steel."

You have begun getting to know the mountains, its ways and means, and its cruel, fickle whims. You may construct stone columns to support your mining operations, and you find better ores when mining.

What it does

Tunneling allows you to get more metal from smelting Ore, and allows you to construct Stone Columns. Stone columns have a larger radius than Mine Supports, so it is advised to take this skill to save some metal on building supports. It is one of the skills that every dedicated miner ought to have, the others being Metallurgy, Steelmaking and Deep Artifice.