Plot

In Postal III, The Postal Dude emigrates to Paradise's sister town of Catharsis as he previously blew up Paradise with a nuclear bomb. Due to the economic meltdown, the Dude drives into town and becomes stranded by the fact he can not even afford a tank of gas. He then must find work and do various odd jobs to escape the town.

Through the course of the game the player can chose one of two paths, the "bad path" which includes joining in on the schemes of Mayor Chomo and Uncle Dave, or the "good path" which involves the Dude joining the Catharsis Police force. The game will take place in a fairly linear and cinematic way, although the players actions will affect the outcome of the story and the game. Although the "good path" will be more difficult to play, it will offer more story line and a longer campaign.

Development

Unlike its predecessor, Postal III will not be based on the Unreal engine but rather on the Source engine. Also, Postal III will be a third-person shooter, in contrast to the earlier entries in the series (Postal 2 being a first-person shooter and Postal being an isometric 2D game).

Early gameplay footage of Postal III being played at E3 2008 reveals new weapons such as "The Badgersaw", a nail bat, a M60 machine gun and the return of the gas can and matches from Postal 2. A new weapon concept is a test lab monkey which will react to a laser being pointed by the Postal Dude. Product manager Mike Jaret revealed in an interview that there will be "special vehicles" in the game such as Segways.

Postal III was developed under the working title Postal 3: Catharsis until October 18, 2006, when the finalized title was revealed to be Postal III.