by This resource is one of the rarest and most valuable on the RA server. Only if you have Luminous Substance can you build items in "Unique", the highest quality level.
You will find this resource mainly at the Glowing Whale. In addition, some units drop at higher Octopus and Haunted Chest.
Also in the Davy Jones Locker Luminous Substance can be purchased in the store.
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