Perlinescent Caves

Perlinescent Caves changes how caves generate underground, aiming to stay close to the vanilla underground experience while adding large cave lakes and wider cave types. Cheese caves are much wider and taller, often with a smooth look, while pancake caves come in many sizes and only rarely grow massive. Spaghetti caves are wider than vanilla spaghetti caves and sit at a slow elevation change, and udon caves line up with aquifer generation to form cave rivers. Larger caves sometimes contain large aquifers, which makes boating possible, and underwater magma is redistributed to help exploration of open flooded spaces.

Most major vanilla caves keep their locations and shapes, and the mod overlaps them with cave lakes or extra intersecting caves. Some aspects add kelp, extra mineshaft loot and noodle-like passages to help traversal. The pack is distributed as a data pack for Fabric, Forge and Quilt, and it is server required with client optional. Files target 1.21 only, and the code is released under the Creative Commons Attribution Non Commercial Share Alike 4.0 license, so it is not open source.