Cordonfall is a zombie defence game played on real streets. Drop a pin anywhere on Earth, or pick one of the ready maps, and the game builds that neighbourhood from OpenStreetMap: every street, every building, every park. Choose any building as your HQ, put your squad on its roof, and hold it through 20 nights while the dead come down the roads you know.

It runs in your browser, on a computer or a phone, with nothing to install, and it's free.

Source and More information: Cordonfall: hold your own street against the dead

Author: indieDB.com