In the meantime, there is no need to know about it. 

The mega hit Minecraft game with weapon mods and the Build Craft construction mod will
appeal to both beginners and advanced players who spent hours on end playing the cubic adventure game.

How to install the Minecraft game correctly: https://craftmods.fun/blog/instrukcija_kak_ustanovit_igru_majnkarft_s_modami/2016-02-02-872