Running With Scissors about the game's development:
Q: POSTAL III sucked hard, was it made by RWS?
A: No, it was licensed to a Russian publisher and developer who were supposed produce the game to our design, with a much bigger team and budget than we had for POSTAL 2. Even taking those facts into account, it didn't work out very well. It was a mistake and one we will not repeat.
In August 2012, Running With Scissors removed Postal III from their own webstore:
RWS has decided to STOP selling POSTAL III from our store. We believe it’s in the best interest of the Postal Community. We encourage newcomers to try POSTAL FUDGEPACK a far superior product for a lot less money than what P3 is selling for on other sites. We welcome all fans, old and new to continue to support our hard core efforts by purchasing cool RWS merchandise, thanks.