>>13885688
>That doesn't force me to move though.
The problem is that in AoE and I think even in AoM you can start building towncenters(the buildings that produces peasants and let's you advance from one age to another) in the last age, when you either have enough forces to kill your opponent, or you don't and he will crush you. Even if you move, you would be too weak to retaliate.
I think Dune 2 might be what you are looking for, because the AI will only attack your original base, it will never look for the other bases, and thus you are safe to rebuild, rearm and reconquer.
You could also try this in some Total War games, by intentionally allowing(because they are generally that easy to beat) your opponents to conquer your starting regions, while you still have a big army somewhere else, though with the AI, it's a bit difficult to hope for it to successfully conquer your regions fast enough to give you that "flight from the enemy" feeling you are craving for.