The new artificial island has a zone called Base Zero that contains a truck where you can loot a Red Nucleus.
Artificial Island Red Core Locked Truck / Portal Guide Tower of Fantasy
The Red Nucleus currency is quite uncommon in Tower of Fantasy. In fact, the only way to get one for free back then was by buying it using dark crystals in the store. Other than that, you have to spend some money in real life to do it.
Fortunately, the introduction of the artificial island in the latest 1.5 update of the game gives players another way to get the currency for free. Specifically, you can get 1x Red Nucleus in a truck inside Base Zero which is a location on Artificial Island.
But to get there, you must first go through a series of portals. This guide shows you how to do it.
