Worlium

Worlium replaces all vanilla cave generators with a Worley-noise-based carver modeled on the classic Worley’s Caves mod by fluke. The Worlium carver produces sprawling, winding, interconnected tunnels. From a gameplay perspective, the underground becomes a massive, labyrinth-like cave system that feels both claustrophobic and expansive.

The mod ships for both Fabric and NeoForge through a shared common module that implements the carver as a custom DensityFunction (worlium:worley_caves). The density function samples a seeded 3D Worley F1/F3-edge cellular noise warped by a 2D Perlin displacement field, applies a depth-scaled warp amplitude so caves become more chaotic closer to bedrock, and eases the cutoff back toward solid near the surface.

Features

• replaces all vanilla caves with a Worley noise-based carver
• more performant than vanilla worldgen due to the mod’s disabling of carvers
• custom aquifer logic (prevents caves from being flooded with water)
• first-class support for Moderner Beta‘s world preset
• increased diamond rarity
• removal of diorite, andesite, and granite blobs
• large lava lakes near bedrock (y=-63 to y=-56)

Known Issues

• when close to aquatic biomes (oceans, rivers, etc) the carver will occasionally terminate with a flat stone wall
• the current aquifer removal logic uses biome tags, which works pretty well but is horrible for compatibility with other worldgen mods/datapacks

Compatibility

• Moderner Beta is supported. All other datapacks that modify worldgen are unsupported.
• Cave Overhaul is technically compatible, but I’d recommend against using it alongside Worlium.