Trading is an important aspect in Astroneer. While you can travel to each planet and gather materials, you can also trade via the Trade Platform, allowing you to quickly obtain the materials that you need without wasting any fuel. One of the key materials needed to trade is astronium, only found at the core of planets.
Related: Astroneer: How To Activate A Gateway Chamber
Venturing to the core of a planet can be dangerous; while tunneling downwards, you will come across caverns, steep cliffs, and hostile plants. In this guide, you are going to learn how to efficiently gather astronium as you reach the core of the planet. First, let's take a look at the location of this rare resource.
Every planet is made up of several layers. The inner core contains the Gateway Engine, while the outer core is the area that surrounds the engine. Within the outer core, you can find astronium nodes. Astronium can be exposed, as well as buried within the cavern walls.
When harvesting, be sure to look out for any dangerous plants in the area, such as Daggeroot. This hostile plant can kill you in just two hits and can be found in the mantle and core of Sylva.
As mentioned above, astronium can be found pretty close to the Gateway Engine. This is a device that can be activated, allowing you to teleport from the engine to chambers on the surface of the planet.
When gathering astronium, you can use this teleportation system, which eliminates the need to travel through tunnels down to the core. With a Gateway Engine activated and connected to a Gateway Chamber, you can quickly teleport to the core, gather astronium, and then teleport back to the surface. From the chamber, you can load astronium on a rover and quickly return to your base.
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