UltraTerraForged - Alex's Caves Fix

Fixes Alex’s Caves biome placement, chamber generation, carving conflicts, and biome locating in UltraTerraForged worlds. Built for Minecraft 1.21.1 on NeoForge.

UltraTerraForged × Alex's Caves

⛏ RESTORE THE WORLD BENEATH YOUR FEET

Let Alex's Caves generate properly in UltraTerraForged worlds.

This compatibility mod addresses conflicts between UltraTerraForged and the unofficial Alex's Caves NeoForge port. It restores cave biome placement and native underground chambers while protecting those areas from incompatible additional carving.

🦇 Six cave biomes · 🪨 Protected chambers · 🧭 Better locating

Overview

⛏ What this mod restores

  • Cave biome placement: Adapts Alex's Caves biome selection to UltraTerraForged terrain.
  • Underground chambers: Prevents surface river-placement restrictions from blocking native chambers.
  • Carving protection: Protects cave biomes from additional carving and decorative terrain writes.
  • Better locating: Verifies /locateacbiome results and provides underground coordinates.

Supported cave biomes: Magnetic Caves, Primordial Caves, Toxic Caves, Abyssal Chasm, Forlorn Hollows and Candy Cavity.

Native chamber sizes are preserved. This mod does not introduce additional biomes, creatures or structures.

🧭 Installation & configuration

  1. Install UltraTerraForged and the supported Alex's Caves NeoForge port, along with its dependencies.
  2. Install this compatibility mod on both client and server.
  3. Select the UltraTerraForged Overworld and enable structure generation.
  4. Explore new chunks for the changes to take effect.

Commands: /tfacfix status and /locateacbiome primordial_caves.

Configuration: config/tfacfix-common.toml. Individual compatibility features can be enabled or disabled.

Dependencies

📦 Requirements

  • Minecraft: 1.21.1
  • Loader: NeoForge 21.1.219+ (21.1.x)
  • Java: 21
  • UltraTerraForged: 1.0.2+1.21.1
  • Alex's Caves: Unofficial NeoForge port 2.0.10 by Raguto, including its Citadel dependency.

Important: Existing chunks are not regenerated. Cave biome coordinates may still lead to enclosed stone rather than an open chamber.

GitHub & documentation · Report a bug

Independent compatibility add-on by Towns & Kingdoms. GPL-3.0-only.

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UltraTerraForged - Alex's Caves Fix Team

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Mikaaah
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Just a Minecraft enthusiast turning way too many ideas into reality! 🛠️ Creator of Towns & Kingdoms, tinkerer of mods, breaker (and occasional fixer) of Minecraft. Making worlds bigger, adventures better, and chaos more fun!

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