Keel
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The Keel is a building material in Arknights.
Item description
A delicate artificial component used as the core material of Base construction.
The foundation of the entire construction operation at Rhodes Island. Although this giant, complicated component must be custom made or ordered, for some reason, Rhodes Island often uses it to build special facilities.
Usage
The Rhodes Island landship require keels to be able to expand the available space of their interior. Being completely different than a seagoing ship, landship keels used by R.I. are much larger and more complicated, so it is difficult to procure even for R.I. as it must be custom-made for each landship.
Keel is needed to upgrade the Control Center, allowing more floors to be available for the expansion of RIIC facilities.
Acquisition
First clear reward
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