@Joreading I might be a little late but heres the jist -The tutorial "the first few chapters" was built to kinda filter out the best of the best of the best, and it was basically just a illusion, anyone who died there has awaken from a coma and are back in their real world
-The people who are here right now in this land called "chaos" are people who died after the tutorial tower and arrived at the main game. They are dead but they only look like zombies to the MC who doesnt see them as humans. I believe his character develpoment will involve becoming more open-minded and seeing these people as what they TRULY TRULY are, (Truly they are dead, but deep inside they are human)
-The "zombie-apoc" you are probably talking about is a result from the corruption that they explained in the earlier chapters upon the MC arriving in this new land, when someones corruption here reaches 100% they turn into a ghoul, the gas that was thrown by those bad guys in the tavern probably caused corruption in peoples spirits, causing this "zombie apoc"