Nullium
by TeamVoided
Nullium is a Fabric server-side collection of small gameplay changes, mainly to how Enderman hold blocks and how tools, weapons and armor are repaired.
What it does
Enderman can only pick up and place blocks that appear in an Enderman-placeable block tag, and their default holdable set is reshaped. An Enderman that spawns already holding a block drops it according to a loot table, so the drop depends on the held block.
Repair works differently from vanilla. Repairs leave no repair-cost counter on items, one repair item restores a tool fully, and the cost is calculated from the tool's material and enchantments. Chain armor is repaired with chains. Most vanilla tools, weapons, armor and repair materials are covered through tags, and items such as maces and shears are not included. Behavior can be adjusted through tags and a config file.
The mod is open source under the MIT License and is published for 1.20.5 – 1.21.1 across four release versions, with the latest Fabric file 0.6.0 for 1.21.1. Fabric API and Fabric Language Kotlin are required. It runs on the server alone, so players join without installing it.
Key features
Enderman block tag
Enderman place and pick up only the blocks listed in a dedicated tag, which can be edited per server.
Loot-table spawn drops
An Enderman that spawns holding a block drops the item defined by a loot table when it dies.
Single-item full repair
One repair item restores a tool completely, with the repair cost derived from its material and enchantments.
Chain armor repair
Chain armor pieces are repaired with chains, following the tag-based repair materials used for vanilla items.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 2
Use cases
Who it’s for: Server owners and modpack makers who want adjusted Enderman behavior and a different repair system, with Fabric API and Fabric Language Kotlin installed.
How it compares
Repairsmith is a Fabric mod for 1.20.1 – 1.21.1, open source under the MIT License, that runs on client and server. Repair Command is also open source under the MIT License and works on Fabric for 1.20 – 26.1, but it is client-side only. No Anvil Penalty is server-side only and open source under the Apache License 2.0, but it is published for 1.21.4 alone, while Nullium covers 1.20.5 – 1.21.1.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Nullium | Fabric | 1.20.5 – 1.21.1 | Server-side only | 2024-08-12 |
| Repairsmith | Fabric | 1.20.1 – 1.21.1 | Client and server | 2025-04-20 |
| Repair Command | Fabric | 1.20 – 26.1 | Client-side only | 2024-07-30 |
| No Anvil Penalty | Fabric | 1.21.4 | Server-side only | 2025-01-25 |
Questions
Does Nullium need to be installed on the client?
Which game versions does Nullium support?
How are the blocks Enderman can carry chosen?
In the catalog
Nullium is one of 29,952 Game mechanics mods on ModsFinder, and one of 19,630 Game mechanics mods for Fabric. 32,366 mods support Minecraft 1.21.1.
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Official listing
- Modrinth page
- modrinth.com/mod/nullium
- Owner
- TeamVoided
- Published
- 2024-04-19
- Updated on Modrinth
- 2024-08-12
- Facts verified
- 2026-10-15