Zombicide: Undead or Alive Running Wild Board Game Expansion by CMON. Includes expansion.  Requires Zombicide: Undead or Alive core game to play (sold separately). 

The Running Wild expansion Includes:
6 Survivor Figures
6 Rider Survivor Figures
1 Abomination Figure
6 Survivor ID Cards
1 Abomination Card
6 Lone Horse Tokens
6 Oversized Color Bases

It introduces a whole posse of Survivors that can be either on foot, or riding their trusted horses. But it’s not all good news, as this expansion also adds the nightmare of a zombie horse!

Each Survivor begins the game on horseback. When they dismount from their horse to enter buildings, their miniatures are swapped and they leave their Lone Horse behind (as a token).

While on horseback, the riders gain skills that enhance their movement and increase their chances of a hit. Individual riders have specialized Blue level skills that add to their repertoire while in Rider mode.