ShetiPhianCore is a library that is needed in order for some Forge mods to work correctly. For example, the MultiBeds mod will not work without it. It makes sense to install it only if it is required in the instructions for the mod.
How to install ShetiPhianCore library
- Make sure you have installed Minecraft Forge.
- Download the mod for your version of the game.
- Put it in the ‘mods’ folder, which is located in the game folder.