Town alert size?

Gameplay
1

How can you increase the size of the guard area when you trigger a town alert? (worker engagement area)

The most basic goblin blow dart units stand about 1 to 2 blocks just out side the engagement area.

So, even if they will only take one hit from a normal worker that is in alert mode, they will never be engaged and will sit just out of the guard zone and kill all my workers…

2

You can’t increase the size, you either need to create a physical barrier that forces the enemies to get closer (for example, place the banner inside a house) or have your own troops/soldiers to fight off invaders/attract them where you want.