Cordonfall

The city is the map

• Real places: two Istanbul districts ship ready to play (Ataşehir and Kadıköy), with Times Square, Shibuya Crossing and Baker Street a click away. You can also type an address or pin anywhere.
• Streets matter: the map is laid out on a one-metre grid. Buildings block everyone. The horde pours down the streets, queues in the narrow ones and tears at the walls it reaches. Asphalt, grass, rubble and water each set their own pace.
• Any building can be your HQ. A bigger one has more structure but more walls to watch. Soldiers fight from the rooftops, where height helps a sniper and hurts a shotgunner.

Day and night

By day you scavenge buildings for Scrap, Survivors and Medkits, recruit, fortify and plan. At dusk you see the routes tonight's raid will take. At night it comes: waves from different streets, growing from 70 walkers on the first night to 210 zombies by the twentieth, with the special infected joining as the nights go on.