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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.
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Alpha Below 1.0.3 - Forge

File namealphabelow-1.0.3-forge.jar
Uploader
multisionmultision
Uploaded
Jul 10, 2026
Downloads
7.2K
Size
69.3 MB
Mod Loaders
Forge
File ID
8405721
Type
R
Release
Supported game versions
  • 1.20.1

Curse Maven Snippet

Forge

implementation fg.deobf("curse.maven:theworldbelow-1482810:8405721")

Learn more about Curse Maven

What's new

Alpha Below 1.0.3

Patch release for Minecraft 1.20.1. I have not had time to personally test these fixes, so a hotfix might be necessary down the line.

Fixes

  • Fixed a chunk generation crash when rare Alpha Steve house lore signs were written during Almost Normal House structure placement: SignBlockEntity#setText was invoked while the sign’s block entity had no level yet (proto-chunk worldgen). Lore text is now applied via NBT on that path, with a try/catch so a sign failure cannot abort feature placement.
  • Hardened Alpha Steve structure lore generation to fail safe under retries and partial states:
    • Added guardrails for missing/invalid block entities, best-effort cleanup of failed optional sign placements, and bounded warning logs to prevent retry spam.
    • Wrapped the house lore trace path so any selection/sign placement exception returns safely instead of crashing generation.
    • Restricted optional lore sign placement to candidates inside the active structure chunk slice to avoid cross-chunk partial writes during generation retries.
  • Fixed renderer compatibility regressions with transformed modded clients by making brittle render redirects optional (require = 0) in:
    • FluidRendererForgeTintMixin
    • InGameOverlayRendererFireMixin
    • Result: if another mod rewrites those targets, Alpha Below now disables only that visual remap instead of hard-crashing on startup/camera transitions.
  • Fixed cross-dimension void transition compatibility by making Alpha Below’s void teleport dimension-aware and config-gated:
    • Added voidTransitionMode (whitelist default, blacklist supported), voidTeleportWhitelist (default: minecraft:overworld), voidTeleportBlacklist, and debugVoidTransitions.
    • Alpha Below now only claims void-fall transitions from explicitly allowed source dimensions; non-allowed dimensions are ignored so other mods can handle their own void mechanics.
    • Preserved existing behavior for overworld entry and kept Alpha ceiling return scoped to alpha_below:alpha_world.

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