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The Frozen Caverns are frigid underground areas featuring ice, snow, and spectacular icicle formations hanging from ceilings and rising from floors.

Overview

Biome ID: FROZEN_CAVERNS
Vanilla Replacement: minecraft:dripstone_caves
Color Code: #91C9C4

Terrain Palette

The Frozen Caverns feature an icy, crystalline palette:

Surface Layers (2 blocks deep)

  • Stone
  • Snow Block (dominant)
  • Packed Ice
  • Blue Ice

Subsurface Layer (1 block deep)

  • Stone
  • Packed Ice
  • Blue Ice
  • Snow Block

Deepslate Transition

Below Y-level 7, terrain transitions to the FROZEN_CAVERNS_DEEPSLATE palette.

Features

Preprocessors

  • Ceiling Icicles (Substratum variant) - Large icicles hanging from cave ceilings
  • Ground Icicles (Substratum variant) - Icicles rising from cave floors

Slabs

  • Snow - Snow layers cover floors where possible

Landforms

  • Giant Ceiling Icicles (Substratum variant) - Massive ice formations hanging from above

Environment

Frozen Caverns create a cold, pristine underground environment. The combination of snow coverage, ice blocks, and dramatic icicle formations makes these caves feel like natural ice caverns. The blue ice adds a striking cyan glow in places.
The giant icicle formations can create natural columns connecting floor to ceiling, similar to dripstone caves but with an icy aesthetic.

Palette Configuration

The terrain generation uses:
  • Sampler Type: Cellular with domain warp
  • Frequency: 0.08 (surface), 0.8 (subsurface)
  • Warp Frequency: 0.01 (surface), 0.1 (subsurface)
  • Dimensions: 2D sampling
Source: /biomes/cave/substratum/frozen_caverns.yml:1

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