errormc
errormc is a server-side horror mod for NeoForge 1.21.1 that makes a world feel unstable, with a Herobrine-style presence and fake system errors.
What it does
Players in a world running errormc can meet scripted scares. A Herobrine encounter and a faceless figure called Faceless Alex appear at unexpected moments, and creepy events may trigger without warning. The horror is staged inside the game rather than on the operating system, so the mod changes what a player sees and hears in the world.
The mod targets NeoForge 1.21.1 only. It is server-side only, so players join a server running it without installing anything, and it is released under All rights reserved, which means the code is not open source. Developer espaceespace67 published version 1.0.0 on 2026-06-05, and the mod was last updated on the same date.
Key features
Herobrine encounters
A Herobrine-style figure appears at unexpected moments in the world, aiming to unsettle the player.
Faceless Alex
A faceless entity stalks the player through the world and reappears while they explore.
Glitch events
Visual and audio glitches make the game feel unstable, with random creepy events interrupting normal play.
Fake system errors
Simulated window movements and fake error pop-ups imitate a crashing system, while the mod's configuration files are created in a controlled way.
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 servers
Server owners who run survival or adventure worlds can add scripted scares for players who want a tense experience.
Scary single sessions
Players on a single-player world can run the mod as a short horror layer on top of normal progression.
Who it’s for: Server owners and players who want an unsettling horror experience in a NeoForge 1.21.1 world. Because the mod runs on the server, players on a server that does not run it see no change.
Questions
Does errormc need to be installed on the client?
Which game versions does errormc support?
In the catalog
errormc is one of 19,031 Adventure mods on ModsFinder, and one of 8,588 Adventure mods for NeoForge. 32,366 mods support Minecraft 1.21.1.
Similar mods
Official listing
- Modrinth page
- modrinth.com/mod/errormc
- Owner
- espaceespace67
- Published
- 2026-06-05
- Updated on Modrinth
- 2026-06-05
- Facts verified
- 2026-10-15