Uranium
Uranium
A dark, heavy metal. While it is best known as a fuel for nuclear devices, its extreme density and hardness also make it good for making certain weapons, armor, and ammunition.
Base Stats
- Stuff Categories
- Metallic
- Market Value
- 6
- Stack Limit
- 75
- Mass
- 1 kg
- Beauty
- -4
- HP
- 100
- Rotatable
- False
- Path Cost
- 14 (48%)
Building
- Terrain Affordance
- Medium
Stat Modifiers
- Beauty Factor
- ×0.5
- Beauty Offset
- +0
- Work To Make Factor
- ×1.9
- Work To Build Factor
- ×1.9
- Max Hit Points
- ×2.5
- Flammability
- ×0
- Armor - Sharp
- ×1.08
- Armor - Blunt
- ×0.54
- Armor - Heat
- ×0.65
- Insulation - Cold
- +3 °C (5.4 °F)
- Insulation - Heat
- +0 °C (0 °F)
- Melee Blunt Damage
- ×1.5
- Melee Sharp Damage
- ×1.1
- Melee Cooldown
- ×1.1
- Door Opening Speed
- ×0.75
- Rest Effectiveness
- ×1
- defName
- Uranium
- Color
- (100,100,100)
Uranium is a metal and one of the rarer materials in the game. It can be used to craft powerful, but slow blunt weapons, and is a required element in the construction of certain late-game constructions, most notably the end-game ship.
While one of the strongest building materials available, it has a significantly lower beauty modifier, which can negatively affect some room designs.
Acquisition[edit]
Tiles of uranium ore can be found rarely throughout the map, but must be mined before they can be used. Small amounts of it can be salvaged from deconstructing ancient cryptosleep caskets, or may randomly arrive in cargo pods. The most reliable method for acquiring it is to purchase it from bulk goods traders or faction bases. Once you've completed the research necessary to construct a deep drill, it can also be found in small deposits underground.
Playing in Large or Ludeonicrous maps (of 300x300 or 400x400 tiles respectively) offer greater chance of finding it on the surface.
Using the Transmute steel
ability on a stack of steel transmutes the stack into an equivalent amount of one of several other resources, including uranium. Using the ability on a steel slag chunk instead produces 15 of one of several resources, including uranium.
In both cases, the resulting resource is selected randomly, with a 20% chance for each option.[Verify chance]
Ore[edit]
Uranium ore tiles have 4,000 health, making them one of the slower ores to mine. They can be found in midsize veins, ranging from 6 to 12 tiles in size. Each mined block has a base yield of 40 uranium, however this is modified by factors such as the Difficulty setting and the mining yield of the pawn.
Usage[edit]
Uranium can be used as a material for stuffable items with the Metallic stuff tag.
Uranium can be used in the following recipes:
| Feature | Toggle |
|---|---|
| Collapse |   |
| Stuffables | |
5 + 
There is no radiation mechanic in RimWorld. You can safely have pawns around, and interacting with, uranium objects without any health effect.
Analysis[edit]
Uranium is only required for a few late game recipes. Early on, it can be safely sold or used for weapons or armor - it is always possible to get more later. If lacking uranium when it's needed, then either the deep drill and ground-penetrating scanner combination, or the long-range mineral scanner, are the best ways to get it en masse. Smaller amounts of uranium can also be obtained via trade. Varying quantities of uranium are commonly added to quest rewards to boost their value up to the minimum, which can result in huge amounts of uranium offered in the late-game.
Uranium is the best material for crafting stuffable blunt weapons such as clubs and maces, as it applies the highest multiplier on melee blunt damage of any material, tied only with jade (which can only be used with clubs), and only causes a moderate increase in attack cooldown times. A uranium mace can be crafted as soon as Smithing has been researched, and is among the strongest craftable melee weapons. Without DLC, high quality uranium maces are typically end-game melee weapons.
Uranium plate armor is a strong contender for melee pawns in the early game. The impact of the high material cost of plate is lessened by the lack of competition for uranium during the time where plate armor is most relevant, the armor provides full coverage and some of the best armor values available at that time short using the much more in-demand plasteel. Eventually power armor outmodes all plate armor however, at which point the armor can be smelted to return some of the uranium.
Uranium's high hit point multiplier also make it a useful material for walls, barricades, and mini-turrets. A wall created from uranium has 750 hit points which makes it the second strongest constructed wall, stronger than any of the stone blocks, and only beaten out by plasteel. This role was more important while plasteel was still flammable, but even now it still has merit as there is usually significantly more demand for plasteel.
Gallery[edit]
One uranium
Partial stack
Full stack
Version history[edit]
- 0.9.722 - Ore version added.
- 1.0.0 - Uranium is no longer a small volume material.
- Stony
- Granite blocks • Limestone blocks • Marble blocks • Sandstone blocks • Slate blocks • Jade • Obsidian
• Vacstone blocks - Metallic
- Gold • Plasteel • Silver • Steel • Uranium • Bioferrite • Obsidian
- Woody
- Wood
- Leathery
- Bearskin • Birdskin • Bluefur • Camelhide • Chinchilla fur • Dog leather • Elephant leather • Foxfur • Guinea pig fur • Heavy fur • Human leather • Lightleather • Lizardskin • Panthera fur • Patchleather • Pigskin • Plainleather • Rhinoceros leather • Thrumbofur • Wolfskin • Dread leather • Armadillo leather • Hippo leather • Mastodon leather • Mink fur • Sealskin • Thrumbomane
- Fabric
- Alpaca wool • Bison wool • Cloth • Devilstrand • Hyperweave • Megasloth wool • Muffalo wool • Sheep wool • Synthread • Mastodon wool • Muskox wool
- Deprecated
- Camelhair