Standalone expansion - the dark side Set can be used entirely on its own or combined with other zombicide: invader sets to create truly epic encounters. New survivors - green Squad consists of six new survivors, along with a new Bot and a Sentry gun. They have the training and equipment, now they just need a little cunning and luck to survive New foes - the Driller xenos burrow at frightening speed. Able to pop up almost out of nowhere, they are a dangerous foe that can suddenly attack from any direction.