Dead Horse

Zombie Horse is an unlockable horse in Multiplayer in Red Dead Redemption. The Zombie Horse has no jaw, scars on its back, and is missing half of its leg. This can be mistaken for the Dark Horse, but though the Dark Horse is only available in singleplayer, then, players know that the horse is a Zombie Horse.

Location
Received on level 50 under "Mounts" (There is a glitch and if this occurs, the zombie mount will never appear)