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The World Below

A hidden Alpha-style world lies buried beneath the modern Overworld. Break through rare Petrified Cobblestone, fall into a silent forgotten dimension, and explore the remains of something ancient.

File Details

Alpha-Below 1.0.0-beta.1

  • B
  • Mar 14, 2026
  • 70.90 MB
  • 3.7K
  • 1.20.1
  • Fabric

File Name

Alpha-Below-1.0.0-beta.1.jar

Supported Versions

  • 1.20.1

Curse Maven Snippet

Fabric

modImplementation "curse.maven:theworldbelow-1482810:7758317"
Curse Maven does not yet support mods that have disabled 3rd party sharing

Learn more about Curse Maven

Alpha Below 1.0.0 Beta 1

First public beta release of Alpha Below for Fabric 1.20.1.

This version introduces the full core experience: a buried Alpha-style world beneath the Overworld, Alpha terrain generation, custom atmosphere, old-style visuals, abandoned landmarks, and seamless world-below transitions when paired with Immersive Portals.

Added

  • Added the Alpha dimension, a dark and silent world with no normal mob activity.
  • Added a custom Alpha-style chunk generator with old cave generation and configurable Far Lands support.
  • Added a custom biome source with Alpha Forest, Alpha Desert, and Alpha Snowy biomes.
  • Added abandoned structures and landmarks including brick pyramids, obsidian walls, obsidian towers, dev house, and campsites.
  • Added floating chopped trees for environmental storytelling.
  • Added dimension-aware Alpha block texture swapping and disabled grass / foliage tinting in the Alpha world.
  • Added Alpha item texture swapping for a curated set of vanilla items.
  • Added fast-lighting in the Alpha dimension for a harsher classic look.
  • Added classic C418 Alpha-era music playback in the dimension.
  • Added mysterious stone shafts linking the Overworld bedrock layer to the Alpha bedrock ceiling.
  • Added Immersive Portals compatibility for seamless vertical stacking between worlds.
  • Added the /alpha command for direct access.

Known Bugs & Issues

  • C418 music may not revert cleanly back to vanilla music when returning to the Overworld via Immersive Portals.
  • The Dev House may generate with incorrectly faced interior blocks, and torches may fail to appear inside.
  • Some structures may still spawn slightly under the surface.
  • Pumpkin patches currently use uncarved pumpkins.
  • Tint/foliage has issues for some people and not others.
  • That first screenshot was a visual glitch that sometimes happens from Immersive Portals if you use it.
    • Reloading chunks or travelling back and forth again should fix it.
  • Skybox bleeds in if fog isnt close enough
  • If you use Immersive Portals, a lot of shader packs may give issues. BSL is recommended
  • Removed Herobrine.