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Horror OneBlock Build for Minecraft 1.20.1, 1.21.1

OneBlock survival with horror mobs, dwellers, guns, shaders, and Create automation.

On a server
downloads
20 downloads
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132 views
Updated
Updated 26.09.2026

Horror OneBlock

Horror OneBlock is a Forge modpack built around a pre-made OneBlock world and a dark horror atmosphere.

Start on a single block and survive while terrifying creatures, dwellers, stalker entities, disturbing sounds, and psychological horror events make progression much more dangerous than normal OneBlock survival.

This modpack combines classic OneBlock gameplay with horror, combat, automation, shaders, and quality-of-life improvements.

Horror OneBlock — screenshot 2

Features

  • Pre-made OneBlock world included
  • Multiple horror mobs, dwellers, and stalker entities
  • Atmospheric sound and shader support
  • Guns and combat-focused survival
  • Create automation
  • Storage and quality-of-life improvements
  • Performance optimizations
  • Designed for a creepy and challenging survival experience
Horror OneBlock — screenshot 3

Included content

This pack focuses on horror-themed gameplay and includes:

  • Horror mobs and dwellers
  • Psychological horror messages / events
  • OneBlock progression
  • Create-based automation
  • Weapon and survival systems
  • Shader support
  • Voice chat and extra immersion features

How to play

After installing the modpack:

  • Open Singleplayer
  • Start the included world
  • Survive and progress through the OneBlock experience

Important notes

  • This modpack includes a pre-made world
  • The included world may show an experimental settings warning
  • This is normal and required for the map / world setup to function correctly

Credits

I do not own the mods included in this modpack. All credit goes to the original mod creators and the creator(s) of the included OneBlock world.

This modpack is a curated combination of mods, configs, and a pre-made world for a complete horror-themed OneBlock experience.

How to install Horror OneBlock

With Millida Launcher

  1. Install Millida Launcher

    The launcher is free: download it at millida.net/launcher and sign in with any nickname.

  2. Click “Install” on this page

    The launcher opens and installs the modpack for Minecraft 1.19.2–1.21.1 on Forge or NeoForge automatically.

  3. Launch the game

    A profile with it appears in the launcher: click “Play”.

Manually

  1. Download the modpack archive

    In the version list above, pick the file horror-oneblock-1.1.1-neoforge-1.21.1.mrpack (217 KB).

  2. Import it into a launcher

    A launcher that supports modpacks (Millida Launcher, Prism) takes the archive via “Add modpack”, then “From file”. No need to unpack it yourself.

  3. Allocate memory

    Modpacks need more memory than the plain game: set 4–6 GB in the profile settings.

On a server

  1. Use the “To server” button

    On Millida Hosting, the button at the top of the page uploads the file to your server and restarts it for you.

  2. Invite friends: they install the same modpack

    To join the server, every player needs the same modpack version.

Minecraft 1.21.1 runs on Java 21: with a different Java version the game may close right after launch.

Versions

With dependencies

MinecraftLoaderFileDateActions
1.21.1NeoForge1.21.1217 KB 19
1.20.1Forge1.20.149.7 MB
1.19.2Forge1.19.232.6 MB
1.19.2Forge1.19.239.3 MB—

What it needs to run

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Author: nothurnLicense: LicenseRef-All-Rights-Reserved

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