This guide will show you how to make zombies swarm and decimate your adversaries.

So we are going to flip a key piece of advice given in How To Survive Zombie Defence and do the exact opposite!

Instead of avoiding using your zombies to kill units as suggested in How To Survive Zombie Defence you are going to do the opposite.

In fact, do use zombies to kill units.
(Yes, even other zombies!)

For every unit a zombie kills, another zombie will spawn next turn.

And for every zombie killed, the "Mutation Strength" of all zombies increases by 1. This is a modifier unique to zombies in the Zombie Defence mode.

Be prepared to use a Zombie Defence project to take control of the horde of zombie spawn. Please beware: this requires some very careful city management.

You levy zombies with the special Holy Site and Campus district projects Turn Undead and Dark Signal. So be sure to build at least one (or both) of these districts in a city you intend to use to spawn zombies.

In the early game, produce a few scouts and slingers as zombie sacrificial offerings. In other words, allow them to get killed by zombies. This will spawn more zombies, helping with an early zombie spawn.

Originally posted by Jefferson Airplane "White Rabbit":

Remember what the dormouse said:
"Feed your head. Feed your head. Feed your head"

If you can make zombies spawn in the early game, they will snowball out of control and become an unstoppable force, decimating your opponents!

In order to help, make war in the early game; peace and alliances in the late game.

Your immediate neighbours are the best targets for war.

Zombies won't attack civilian units (i.e. workers and settlers). So providing you have eliminated non-zombie barbs you can use a wall of civilian units to cheese Zombie Defence mode. But beware: regular barbs (non-zombies) will attack and capture your workers and settlers.

Don't spend all worker charges. Once there is just one charge left keep them around as a human shield around vulnerable young cities.

Once you have built either a Holy Site or Campus, you can use the special Zombie Defence projects to levy the zombies around your city.

(Yes, this is an exploit).

Using the special improvements barricade and trap is the second half of any successful Zombie Defence strategy.

Follow instructions in How To Survive Zombie Defence on building walls and defensive improvements to thwart the zombie swarm from destroying your own cities.