Kabaneri of the Iron Fortress

Kabaneri of the Iron Fortress (甲鉄城のカバネリ, Kōtetsujō no Kabaneri) is a Japanese anime series produced by Wit Studio for Fuji TV's Noitamina block.

Plot
The "steampunk survival action" story takes place on the island country Hinomoto, where humans hide themselves in fortresses called stations against the threat of zombie-like beings with steel hearts known as "Kabane." Only armored locomotives known as "Hayajiro" go between the stations.