Synthium Expansion
A simple mod that introduces the powerful Synthium metal, forged from iron, copper, carbon and redstone energy.
⬇ Download on Modrinth
Synthium Expansion — The Next Generation Alloy
Discover Synthium, a man-made alloy born from the fusion of iron, copper, carbon, and the power of redstone.
Craft the Synthesizer Machine and forge this mysterious material capable of surpassing natural ores.
Create powerful new tools and uncover the true potential of synthetic creation.
Features:
A new custom ore: Synthium Ingot
Two new crafting materials: Powdered Carbon and Redstone Fluid Bottle
A brand-new machine: Synthesizer Machine for advanced crafting
Complete toolset made from Synthium
This is only the beginning of the Synthium Project — future updates will expand its technology and hidden energy.
Check out the gallery for more information.
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.20.1
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as synthium_expansion-1.0.1-forge-1.20.1.jar — drop this file into the mods folder
- Download size: 2.7 MB
- Download link checked 7 Sept 2026 — working
These come from our own check of the pack file, not from the source page.