Well,ik there's 3 zeus mines,but in fact 2 people with trench can mine entire mine alone,and when theres 10 people in one mine sometimes it can be so annoying,especially if you won't use trench (bc of the mining xp),my suggestion is making 12 zeus mines or like 5 (even tho I think 12 would be better bc zeus is like the king of all gods and theres 12 gods),plz think about it and have a great day!.