The world is destroyed and now all that is left is dirt and zombies. You can either try to rebuild it slowly or leave Earth and go to another Planet that can sustain you. This mod includes Galacticraft and Wasteland so there is nothing but dirt and zombies so you can now leave earth and go to the moon or any of the planets in the solar system. This modpack also includes Mekanism, Thermal Dynamics, and Ender IO to sustain your machinery. It also has voice chat so then you don't have to go alone on this journey. Also if you need some better tools to either fight better or get resources faster then Tinkers Construct will help with this.

