by The Eternal Forge is an extended version of the normal "Forge".
The special bonus is that metal ingots are produced 5 times faster here than in a normal forge.
You can either build the Eternal Forge yourself or buy it in the Davy Jones Locker Store for doubloons.
To build it yourself, you have to tame a fire elemental (buy the corresponding token on C3, cost: 36,000 gold), sacrifice it with a sacrifical dagger and then assemble the "core of fire elemental" with the remaining ingredients in a Smithy. Note that the token lasts 48 RL hours, the core only one. So plan carefully.
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