This is a primitive tech mod, that goes from stone to around iron. It includes many things like flint knapping, new machines like blooms, stone anvil, and many more.
It can be used standalone and comes with it's own advancement tree. However, it is mostly used for the UNTAMED modpack.
It does have compatibility with Spartan weaponry, Jade, JEI, KubeJS/Crafttweaker.

