World Merge

What would you do if you had 24 hours to prepare for the apocalypse? Thrown in the middle of the apocalypse as one world merges with the remnant of another Adam tried to survive the same way every other protagonist in a book does. And he died in the first five minutes. Fortunately that was just the first try, and he woke up exactly one day before everything started in the first place. Join him and his three companions aboard the Zombinator as they try to survive and find a new life in this new world. _______________ Well, this is my first story here and English is not my first language so there are going to be mistakes. Help with those things would be nice. This is a Litrpg story with levels, abilities, crafting and that sort of thing. So If you think you can enjoy that I hope you like this.