Calclavia Core
Calclavia Core 1.6.4 is a required library used in Calclavia’s mods. It will need to be installed in the mods directory in Minecraft just like any other mod. The library adds in code that are used in Calclavia’s mods but does not add any actual features into the game except basic crafting recipe items and ore generation (if the ore is not already generating).
Requires:
How to install:
How To Download & Install Mods with Minecraft Forge
How To Download & Install Fabric Mods
Calclavia Core 1.6.4 Download Links
For Minecraft 1.6.4