Train Simulator 2013, Trains Vs. Zombies 2; the expansion does not need the original game to play.
As the title implies, the game is Train Simulator plus Zombies, including five original scenarios in which New York City has been overrun by toxic slime, naturally turning much of the populace into zombies. The player's job is to rescue passengers from the zombie horde.
The trick is, anyone caught in the slime is turned into a zombie, so players have to be careful about who they let in. Complicating matters, abandoned trains block the escape route and the zombies are glomming the rails.
On the train simulation side of things, the scenarios feature a realistic Northeast Corridor route and the AEM-7 electric locomotive with passenger cars
Gamers interested in the expansion can pick it up for $8.99 USD / £4.99 / €5.99 / 124Rub / $3.99 CIS - check out thefor more info.