New York Slums is a multiplayer map in Syphon Filter 2. Available from the start, it is based on the level New York Slums (sharing the same name). The location is based in real-life New York City, NY inside an abandoned house, featured partway through the level in the story. Some variations have been added to seal off exits.
Tenement buildings on the lower east side were all built from 1830 to 1850 as the city's population soured from 300,000 to over a million. Lots designed for single row houses, 25 feet wide and 100 feet deep, were soon filled with five-story buildings. Population density reached more than 250,000 people per square mile, all crowded into flats less than 300 square feet, with no toilets or running water.
The Tribune, observing the garbage lining the streets, wrote 'it is one festering, rotting, loathsome, hellish mass of air poisoning death-breeding filth, reeking in the fierce sunshine which gloats yellowly over it like the glare of of a devil.'