Sign here. Next stop: survival.

Years after the zombie outbreak, your hideout has finally run out of food and ammo. One rumor offers a last sliver of hope: a train heading into the distance can take you to the survivors' last settlement.

You board the train and sign a contract with a mysterious company:

Activate beacons. Eliminate special zombies. Complete 25 days of assignments, and you'll earn your place in the survivors' camp.

Sounds like a decent job—as long as you live long enough to get there.

Beacon on. Horde incoming.

Activate the beacon yourself and face the oncoming horde. Aim, fire, reload, fire again—get a first-person look at hundreds upon hundreds of unfriendly faces.

That one in the plaid shirt looks awfully like your old coworker from Development. The one who kept leaving your requests on hold.

Sure. A couple of extra rounds for that one.

And the one boosting the speed and attack power of nearby zombies? Isn't that your old boss, the one full of empty promises?

So he actually can buff a team. Take him out first.

Back aboard. Build for the next fight.

25 days on the rails. 25 chances to gear up and upgrade. Every return to the train means deciding how you'll fight next.

Stack firepower and turn yourself into a turret?

Boost your speed and run circles around the horde?

Or raise your charm until the zombies just can't keep their hands off you?

Wait. Is that last one really a good thing?

Choose your upgrades and step off the train with new tricks up your sleeve. The next beacon is waiting for you.

With thanks to the previous passenger

Not everyone survives the escape. But failing to reach the end doesn't mean you had nothing to offer.

The next passenger will carry on. And when they find what you left behind, they'll say, with heartfelt gratitude:

“Thanks for the bounty, Mother Nature!”

Only this time, Mother Nature is you...