null.missing.name.error.mod_old
This NeoForge mod changes how Minecraft draws certain blocks in a world, so players see glitched terrain while the world itself stays safe to play.
What it does
Blocks that would appear ordinary are changed by this mod into glitched forms that show visual errors instead. The author notes that the changes are meant to leave the world itself safe to keep playing in, with the glitches limited to how the blocks are drawn.
The mod suits players who want a deliberately broken look in survival or creative worlds and builders who collect odd decorations. It is cursed in tone and sits in the Cursed category, with World generation and Decoration as secondary categories. A server running it needs every connecting player to have it too.
Files are published for NeoForge only, for the single game version 1.21.4. The latest file is 1.0.2, dated 2025-09-15, under All rights reserved, so the code is not open source.
Key features
Glitched block changes
Affected blocks in a world are replaced with glitched versions that display visual errors.
Safe world changes
The glitches are described as leaving the world safe, so existing terrain stays playable.
Cursed decoration
The effect works as an unsettling decoration, suited to themed builds and horror-style maps.
Single version build
Builds target NeoForge and Minecraft 1.21.4 only, so no other version is supported.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Horror-themed maps
Map makers who want corrupted terrain can use the glitched blocks to set an uneasy atmosphere.
Cursed builds
Players building unsettling structures can use the visual errors as part of the design.
Who it’s for: Players and map makers who want corrupted-looking blocks on a NeoForge server or client running Minecraft 1.21.4. Both the server and each player need the mod for the effect to show.
How it compares
The Null Dimension is a NeoForge mod for 1.21.4, released under All rights reserved and not open source, and it also runs on client and server. Alpha 1.0_13 covers NeoForge builds 1.21.1 – 1.21.8 and is All rights reserved. Just Enough Null is listed for Forge and NeoForge across 1.20.1 – 1.21.1 and is not open source. Lost_procedure targets 1.21.8 only, is MIT licensed and is not open source.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| null.missing.name.error.mod_old | NeoForge | 1.21.4 | Client and server | 2025-09-15 |
| The Null Dimension | NeoForge | 1.21.4 | Client and server | 2025-12-31 |
| Alpha 1.0_13 | NeoForge | 1.21.1 – 1.21.8 | Client and server | 2025-07-18 |
| Just Enough Null | Forge and NeoForge | 1.20.1 – 1.21.1 | Client and server | 2025-05-20 |
| Lost_procedure | NeoForge | 1.21.8 | Client and server | 2026-10-15 |
Questions
Does the mod need to be installed on the server?
Which loader and game version does it support?
Is the code open for changes?
In the catalog
null.missing.name.error.mod_old is one of 7,555 Cursed mods on ModsFinder, and one of 2,801 Cursed mods for NeoForge. 17,979 mods support Minecraft 1.21.4.
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Similar mods
Official listing
- Modrinth page
- modrinth.com/mod/null.missing.name.error.mod_old
- Owner
- Blue Alicorn Mods
- Published
- 2025-09-05
- Updated on Modrinth
- 2025-09-15
- Facts verified
- 2026-10-15