A simple, yet powerful, defense mechanism to stop an onslaught of enemies from the outside.

The block-based construction is easy to create, yet offers flexibility in design.

The fence consists of an electric fence, which will activate if the target or any of its surroundings are touched. A second layer is made up of barbed-wire fences, which will also activate the electric fence and sound an audible alarm.

A third layer of defense consists of a field of spikes, which do damage and are easily replaced for little cost.

The garage has a tower over it, with four turrets that can be armed to protect the house.

The fortress is built around a house, which has a moat.