CurseForge · Minecraft mod
Rupec's Itemiums
Just a mod adding useless items with unique ways of obtaining.
Quick answer
Which Rupec's Itemiums release should I use?
Rupec's Itemiums rupecs_itemiums-1.0.4.jar targets 1.20.1 with Forge. The project page does not say whether this file belongs on the client, dedicated server, or both. No extra mods listed for this file.
Where it goes
Is Rupec's Itemiums required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
The source does not explicitly classify this release as client-only or server-only.
What else does Rupec's Itemiums rupecs_itemiums-1.0.4.jar need?
rupecs_itemiums-1.0.4.jar. Change the file and its required mods may change too.
This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional mods.
Before you install it
Add Rupec's Itemiums without breaking your instance.
Built for Rupec's Itemiums rupecs_itemiums-1.0.4.jar. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use rupecs_itemiums-1.0.4.jar. It targets 1.20.1 with Forge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside rupecs_itemiums-1.0.4.jar. It opens that exact file at the source.
About this project
What does Rupec's Itemiums add?
Itemiums
What are itemiums?
Itemiums are items which spawn when player meets some conditions.
They are scaled by how many elements they contain ranging from 1-5
Example itemiums

Burning Cloth
Tier I | FIRE Type
Might spawn when player is burning.

Jack of Spades
Tier I | CARD Type
Might spawn when attacking a squid with paper

Iron Plating
Tier I | TECH Type
Might spawn when player is taking damage while wearing a piece of iron armor.

Bread Piece
Tier I | DIVINE Type
Might spawn when player is eating bread while inside a boat.
Higher Tier Itemiums
Tiers from II - V aren't spawning like tier I itemiums, instead must be crafted from their coresponding tier I itemiums and Enthereal Mass, Enthereal Conjugation or Enthereal Void

For example
Ancient Remains | Tier II | GROUND, TECH Type
Is crafted with 3x TECH Type, 3x GROUND Type and 3x Enthereal Mass
Enthereal Stuff
Enthereal Mass
Enthereal mass is an item required to craft all higher tier itemiums.
It has a chance to spawn alongside any itemium
Enthereal Conjugation
Is required to craft even higher itemium tiers.
Also spawns alongside itemiums but with a lower chance.
Can also be crafted in Reality Manipulator. (Only with Rupec's Emblems installed)

1x Tier I itemium + 2x Enthereal Mass
Reality manipulator recipes are chance based, every recipe has a different chance of success.
Enthereal Void
Enthereal void is only obtainable trough crafting and used in the highest tiers of itemiums.

Project description from CurseForge.
Pick your setup
Rupec's Itemiums by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Rupec's Itemiums versions and loaders
rupecs_itemiums-1.0.4.jar
13 Sept 2026
rupecs_itemiums-1.0.3.jar
13 Sept 2026
rupecs_itemiums-1.0.2.jar
12 Sept 2026
rupecs_itemiums-1.0.1.jar
12 Sept 2026
rupecs_itemiums-1.0.0.jar
18 Aug 2026
Looking for an older file? The official CurseForge project page is in Resources.