Cordonfall

Cordonfall is a top-down zombie defence game on real streets. Type in an address, any address, and the game builds that neighbourhood from OpenStreetMap: your building becomes the HQ, your neighbours' roofs become firing positions, and the dead come up the roads you walk every day.

• Any town or city on Earth, street by street and building by building (map data © OpenStreetMap contributors).

• Pick any building as your HQ; the block around it is yours to hold.

• Every street plays differently: dead ends, rivers, parks and wide avenues change where the horde comes from.

• Search the buildings around you for scrap.

• Build barricades, wire, mines, sentry guns, flame turrets, tesla pylons, searchlights and howitzers; your engineers walk out and build them.

• Recruit from ten soldier classes, from riflemen and snipers to combat medics, flamers and a K9 war dog. They earn names, ranks and nicknames, and they learn to shoot straight.

The horde grows every dusk and learns your street: the routes you leave open, the building that makes the most noise. Runners, Breachers, Boomers, Acid Spitters, Screamers and the Behemoth: ten kinds of dead. Lose the HQ and the street falls. Last ten nights, then keep going for the endless board.

• The Daily: one map for everyone, once a day, one leaderboard.

• Eleven Minutes: one commando, eleven minutes, a horde that never stops, and a new weapon card at every level.

• Alpha modes, playable now and still changing: Survival, a slower life on your street; Street War, where you defend your street and attack other players'; The Cordon, a campaign of crafted missions; and Extraction, a stealthy scavenging run.

Cordonfall started as a browser game, where Siege on your own street stays free. The Steam edition has every mode, Steam achievements and cloud saves, in twelve languages.