Expanded Materials - Metals

[07/25/2026]: v1.2.0a

• Flammability of all metals reduced from 40% to 0%.
• VFE - Factory drill now can produce coal.
• Adjusted rarity of underground deposits of aluminium.

[06/08/2026]: v1.2.0

• Added French translation by WailWolf.
• Updated textures for the alloy furnace and electric alloy furnace.
• Electric alloy furnace is no longer stuffed.
• Electric alloy furnace cost updated from 100 stony, 50 steel and 3 components to 130 steel and 7 components.
• Added chemfuel alloy furnace.
• Added Helixien gas alloy furnace.
• Added advanced alloy furnace with automatic alloy recipes.
• Added a recipe to alloy plasteel.
• Electric alloy furnace is now minifiable.
• Electric alloy furnace now has a 10% work speed boost over the regular alloy furnace.
• Alloy furnaces now correctly have work speed penalty if not placed in a workshop. Check the updated infographics below for more information!

[04/11/2026]: v1.1.2a

• Patched the new content update of VGE - Chapter 1.

[04/02/2026]: v1.1.2

• Patched the costs of VWE - Laser uncraftable weapons.
• Added the correct filter for 4x shell recipes from SoS2.
• Sterile tiles now require stainless steel.
• SoS2 wreckage now yields aluminium and/or titanium when deconstructed.
• Beam Graser can now be crafted with tempered steel like the beam repeater.
• Added a new automatic patch for batteries (the option is unavailable if there are no batteries to patch.)
• Added a toggle for the recipe modification of heavy bridges (enabled by default).

Expanded Materials - Metals is a mod that aims to add complexity and difficulty to the gameplay experience of Rimworld by adding new metal resources such as iron or copper. The mod is aimed to be integrated with the vanilla game and some of the most popular mods out there. You can expect more complex production chains and more immersive gameplay, especially if you are seeking for a challenge and variety.

There might be some things that aren't reached by the automatic patch code or whose cost list doesn't make sense. If you find something like this while playing, make sure to report it in the pinned discussion so that I'll be able to add it to my roadmap and fix it when I have the time.

As of update 1.2.0, electric alloy furnaces are no longer stuffed. Any previously build electric alloy furnace will still retain its material after the update, though. This can be easily solved by deconstructing it and building it again. It doesn't affect gameplay, it just looks ugly.

Q: Where are the settings? A: Under the "Vanilla Expanded Framework" tab.

Q: Save game compatible? A: Adding the mod mid-game will not cause issues, but the new resources will not generate naturally.

Q: Can I switch from the old version? A: No, sadly. This new version has new code and internal names, and switching will 100% break your save.

Q: Is lead poisoning neutralized by toxic environment resistance? A: Yes.

Q: Can I suggest a feature? A: Sure thing! Leave a comment below or join my Discord server.

Q: Are you seeking help for these? A: I do modding because it's fun and because I want to add new things to my own playthroughs, but I'm always open to collaborations and new opportunities to make great things. My DMs are open and you're invited to join my Discord server to discus your ideas.

Q: Will you add compatibility for X mod? A: It's unlikely that I will make patches for mods that I don't use, that's why I made my best effor to make automatic patchers and make the mod as intuitive as possible, so that other modders will be able to make their own patches if they want to. You can reach to me for help if you want, I don't mind it at all!

French translation by WailWolf.

Art, code and infographics created by Argón.

Huge thanks to the people at the Rimworld server for their help and to Vanilla Expanded for their useful framework.

Rimworld is property of Ludeon Studios.