The zombies appeared out of nowhere and destroyed the world we knew. Some brave individuals joined forces and took up arms against the horde of the infected. These survivors now roam the country in search of supplies, revenge, and fun at the expense of the zombies. 
You are the Survivors. The past no longer exists; now you are the architects of your own destiny! It is time for new challenges, dangers, freedom, and friendship. 
It is time for...
 
Zombicide Undead or Alive is a collaborative game for 1 to 6 players, ages 14 and up.

Play together with your friends, forming a team of Survivors fighting for their lives during a zombie invasion in the Old West, in a story full of action! The zombies are controlled by the game itself, using some simple rules and a deck of cards.
Find weapons, kill zombies, and build up adrenaline to power up your Survivors. The more zombies you kill, the more will come!

Undead or Alive uses the rules of Zombicide with the addition of some special traits, including the Survivors' Class Abilities (Fighter, Faithful, Gunslinger, or Citizen), new zombie generation rules, a Gatling Gun, even a Train, and much more!

Choose from 14 Survivors, form your gang, and bring justice to your frontier town over the course of 10 missions composed using modular map tiles.

Contents: 14 Survivors, 40 Walkers, 16 Brutes, 16 Runners, 1 Abomination, 1 Gatling Gun, 6 Colored Bases for the Survivors, 6 Survivor Boards, 14 Survivor Identity Sheets, 120 Mini-Cards, 82 Equipment Cards, 37 Zombie Cards, 1 Abomination Card, 12 Game Tiles (double-sided), 6 Dice, 48 Tokens, 29 Markers, 1 Rulebook.