How to Build a Zombie Fortress

Build a wall around your selected property as high as you are able. A zombie's brain function is as close to zero as possible; they will not have the capacity to figure a way over the wall.

Install a renewable energy system on your fortress. In the days and weeks after the beginning of the zombie apocalypse, grid-supplied electricity will become a thing of memory. If you require electricity for personal comfort and security, you will have to supply your own.

Bash any zombies in the head using your zombie club to incapacitate them. It is common knowledge that damaging the brain of zombies will render them less dangerous. As zombies reach the wall surrounding your fortress, and as they are incapacitated, they will begin to pile up. Over time, the zombies will climb over the corpses and will eventually reach the top of your wall.

Begin digging an escape tunnel. Escape will eventually be the only option if your fortress is properly secure. Once all other humans have been consumed by the zombies, you and your fortress will become the target of all zombies remaining on the planet. It is at this point that abandoning your fortress will be the only option, preferably through a well-prepared tunnel to a safe area for escape.