The basic ores of The Planet Crafter include elements like cobalt, iron, and titanium. However, several of the more advanced machines need minerals instead, such as quartz and zeolite. As of "The Volcanic Update," a new kind of mineral has joined the group: obsidian.

Obsidian is a form of volcanic glass, so it's no wonder that it's the highlight of "The Volcanic Update." In fact, you'll need obsidian for a few late-game recipes, including a few that already existed in The Planet Crafter. That's why it helps to know where to go to find this essential material.

Related
The Planet Crafter: Where to Find Uranium

Uranium is essential for rocket engines and nuclear reactors, but this elusive element can be hard to locate.

Obsidian Locations

Planet Crafter Obsidian

The best place to find obsidian is in the Volcanoes biome, which is in the southeast corner of the map. This places it south of the Wasteland and the Meteor Field, and east of the Waterfall.

Something to note is that the Volcanoes are mostly dormant during the early terraformation stages, and a lot of the obsidian won't appear until the lava starts flowing. However, you can still find a large supply of the mineral around the giant obsidian pillars, which are in the center of this map:

Planet Crafter Obsidian Map

The obsidian pillars are also the best place to put your Ore Extractor T2 and T3 when you want to mine for obsidian.

Aside from the Volcanoes region, you'll also start to see obsidian appear in random crates and safes after you reach the terraformation stage when they start becoming useful.

How to Use Obsidian

Planet Crafter Optimizer T2

Obsidian shows up in a variety of late-game machines and recipes. You'll need it for:

  • Teleporter
  • T2 Machine Optimizer
  • Microchip - Map
  • Fusion Energy Cell
  • T6 Backpack

None of these items are absolutely essential, but they all make your life easier in different ways. The teleporter lets you move quickly across the map, the machine optimizer allows various machine types to work better, the map lets you see where you are as you explore, and so on.

The fusion energy cell may be the biggest use of obsidian in the game. While the shipwrecks that need a fusion energy cell are limited, you get more Terra Tokens from a cell than from any other item. With a full load of fusion energy cells in the space trading rocket, you can get 2,000 Terra Tokens for a single trip. That kind of cash adds up quickly, at least if you're able to automate the process of crafting fusion energy cells.

The Planet Crafter
The Planet Crafter

Platform(s)
PC
Released
April 10, 2024
Developer(s)
Miju Games
Genre(s)
Open-World , Survival
How Long To Beat
19 Hours