Postal is an extremely violent isometric shooter where the player controls a psychotic man on a killing spree. Postal was developed by Running with Scissors in 1997 for the PC. It later received the expansion pack Special Delivery, which added four new levels.
There are twenty-four playable characters. The player can mow down marching bands, spray protesters and charbroil whole towns. Multiplayer player mode allows for combat between up to sixteen players.
In the game the player is cast in the role of a character simply referred to as "the Postal dude", who is going insane for unknown reasons. Through the game the player gains a number of weapons ranging from shotguns to flamethrowers. The beginning of the level offers a peek into the disturbing view into the Postal Dude's mind via short poems referencing the level the level or a current event.