How to Host a Horrorland Server (Forge 1.20.1 Guide)

Start with at least 6 GB of RAM — Horrorland's own recommended floor for Forge 1.20.1 — since layering Herobrine, Cave Dweller, and the rest of its horror mob roster on top of base survival mechanics pushes memory higher than a vanilla pack of the same mod count.

Import Horrorland from its official Forge 1.20.1 modpack file directly rather than rebuilding it from a client export — a clean import keeps the managed spawn-rate tuning intact, which is what stops the layered horror mods from conflicting with each other.

Watch the server log through first boot until the world finishes generating and every horror mod reports a clean init — packs that stack multiple scare-mob mods are prone to spawn-table collisions that only surface once the dimension is fully loaded.

Only invite players once that first boot has completed without errors — letting people wander in mid-generation is how Cave Dweller or Herobrine encounters end up triggering before chunks and spawn zones are properly established.

Take a backup before importing a new world, updating the Forge loader, or editing any horror-mod config — a bad config edit on a pack like this can corrupt spawn conditions and undo hours of carefully built dread, not just lose blocks.