Radiation Crystal: How to Get & Drop Chances

What is Radiation Crystal? Features and uses

Radiation Crystal is a rare item in Core Keeper (Placeables & furniture). It is an ingredient in 3 recipes.

Radiation Crystal key points (from the game data)

Size when placed: 2×1 tiles.
Sells to merchants for 11 Ancient Coins.

Calculated and summarized by this site from the game data (1.3.0.6).

Radiation Crystal mechanics (checked against the game data)

The Radiation Crystal deals 80 radiation damage to things around it.
It has damage reduction, only 5 health, and takes at most 1 damage per hit.

Written by this site from values in the game files (1.3.0.6 prefabs and configuration files).

Radiation Crystal notes

It hits players and most creatures within 5 tiles with 80 radiation damage.
Explosives such as the Bomb Scarab's mortar or bombs cannot damage it.
Direct hits from the Fireball Staff (5 normal shots or 4 secondary shots) or the Noxious Meteor Staff (5 hits) can destroy it.

These notes cover behavior that the game files do not show directly. They are based on facts from the Core Keeper Wiki (Fandom) page "Radiation Crystal" (CC BY-SA 3.0), rewritten in this site's own words.

What is Radiation Crystal used to make? Craftable items and their uses

Items you can make with Radiation Crystal, with how to craft them, the other materials needed and what the result is for.

Druidra the Wild Titan Scanner

How to craft: Crafted at Ancient Hologram Pod, Hydra Altar
Materials: Ancient Gemstone ×10, Mechanical Part ×10, Solarite Bar ×10, Radiation Crystal ×3
What it is: Druidra the Wild Titan Scanner is a scanner that marks where Druidra the Wild Titan is on your map. Use it when you cannot find the boss.

Crydra the Ice Titan Scanner

How to craft: Crafted at Ancient Hologram Pod, Hydra Altar
Materials: Ancient Gemstone ×10, Mechanical Part ×10, Solarite Bar ×10, Radiation Crystal ×3
What it is: Crydra the Ice Titan Scanner is a scanner that marks where Crydra the Ice Titan is on your map. Use it when you cannot find the boss.

Pyrdra the Fire Titan Scanner

How to craft: Crafted at Ancient Hologram Pod, Hydra Altar
Materials: Ancient Gemstone ×10, Mechanical Part ×10, Solarite Bar ×10, Radiation Crystal ×3
What it is: Pyrdra the Fire Titan Scanner is a scanner that marks where Pyrdra the Fire Titan is on your map. Use it when you cannot find the boss.

How to get Radiation Crystal

Placed inside dungeons or scenes (buildings, ruins and so on); break it or pick it up to get itPlaced in: Failed Titan, Crystal Meadow [The Shimmering Frontier], Crystal Maze [The Shimmering Frontier], Lucent Oak Spiral [The Shimmering Frontier], Solarite Ore Boulders [The Shimmering Frontier], Crystal Forest [The Shimmering Frontier], Crystal Area [The Shimmering Frontier]
Grows on the ground or walls when the world is generated

Scene containers, dungeon placements, guaranteed drops and natural spawns are based on the Obtaining data of the Core Keeper Wiki (Fandom) (CC BY-SA 3.0), because these are not in the game files this site reads. Scene names are the wiki's English names.

What Radiation Crystal is used for (3 recipes)

	Recipe (materials)
Druidra the Wild Titan Scanner	Ancient Gemstone×10 Mechanical Part×10 Solarite Bar×10 Radiation Crystal×3	375
Crydra the Ice Titan Scanner	Ancient Gemstone×10 Mechanical Part×10 Solarite Bar×10 Radiation Crystal×3	333
Pyrdra the Fire Titan Scanner	Ancient Gemstone×10 Mechanical Part×10 Solarite Bar×10 Radiation Crystal×3	351