* ActorAllusion: Zack Ward's work on the ''Postal'' film adaptation (not to mention the majority of his filmography and other acting work) gets acknowledged in the ''Postal 2'' expansion pack ''Paradise Lost''. See HeyItsThatGuy
* BannedInChina: ''Postal 2'' remains the only game in the series to suffer from this. To this day, the game remains banned in New Zealand, Australia, Malaysia, France and Germany. [[note]] ''Postal 2'' was also banned in Sweden though this has since been overturned. [[/note]]
** Regarding Malaysia: Physical copies of the trilogy, yes, they're banned from store shelves no thanks to a bunch of soccer moms. The Steam versions, however...
* CreatorBacklash: RWS has all but disowned the third game, dubbed it "Akella's ''Postal'' Spin off", and has pulled it from its store.
** Vince Desi had previously promised the game would not have DRM. The final version does. Just one of many things Akella did.
* {{Defictionalization}}: [[http://www.postalgames.com/pd-krotchy-doll-now-talks.cfm You can actually buy Krotchy.]]
* HeyItsThatGuy: The film version of the Postal Dude is played by Zack Ward. Guess [[Film/AChristmasStory Scut Farkus]] ''really'' didn't turn out so well after growing up. He even makes a return AsHimself in ''Paradise Lost'', [[SelfDeprecation in all his self deprecating glory]]. If you face him on the final day of the game, [[spoiler: he will dress up as his character in the ''Postal'' film and declare himself the [[KillAndReplace "true" Postal Dude]] and challenge you to a [[ThereCanOnlyBeOne fight to the death.]]]]
* OldShame: ''Postal III'' has become this for RWS. See TroubledProduction.
* TheOtherDarrin: The Postal Dude was voiced by Rick Hunter for the first two games. For ''Postal III'', he was replaced by Corey Cruise - likely [[ExecutiveMeddling another cost-saving measure by Akella]], considering there are still some lines recorded by Hunter hidden in the game files.
** Rick made a return to ''Postal 2'' when it was updated with additional content and voice clips. One of the bullet points for the Steam page of the ''Paradise Lost'' DLC is even "The Dude's original voice: No bogus imposters here!" [[spoiler:This doesn't stop Corey Cruise from [[SplitPersonality reprising his role]], however...]]
* TributeToFido: Champ is named for lead designer Vince Desi's dog, who later died of cancer in 2011. The 2015 ExpansionPack ''Paradise Lost'', whose plot involves searching for him, is dedicated to his memory.
* TroubledProduction: ''Postal III'' very much so. According to the RWS website, things were going well with Akella at first until the Russian economy took a downturn, forcing Akella to lay off their A-team that was working on the game. RWS admitted they should've pulled the plug at that point since they knew there was no way Akella's B-team could possibly finish development to their standards, but they soldiered on anyways and Akella took more cost-cutting measures due to running low on funds. To top it off RWS were unable to oversee the last 12 months of development on the game, so it's no surprise it ultimately turned out the way it did. Thanks to the critical and commercial failure of the game, RWS has removed the game from their website's online store and refuses to even consider it canon anymore.
** ''Postal 2'' received a patch in December 2013, the first one in 10 years. It had a slight delay, but is finally out, adding a lot of things to the fray, and making Apocalypse Weekend a full part of the main game.
* {{Vaporware}}: ''Postal III'' was announced in 2006, with very few screenshots or videos being released since then and the official website being mostly filler. In October 2011, the game finally appeared on Steam's store under "Coming Soon" with the release scheduled for December. The exact date was finally revealed as December 20th, although the game was only available from the Running With Scissors online shop until February 2012.
** The ''Postal 2'' update ''Paradise Lost'' was announced in mid-2014 and was slated for a fall release that same year. It was then delayed to an unspecified date, finally being given [[https://steamcommunity.com/games/POSTAL2/announcements/detail/190615233704658436 a set release date of April 17th, 2015]].
* WikiRule: [[http://postal.wikia.com/wiki/Postal_Wiki The series has its own wiki]], [[WikiMagic which could use some magic]].
* WhatCouldHaveBeen: ''Postal 2'' had some things that were either cut from the game or scrapped. Of course since the game is medium aware, it has a graveyard for them. A list of these things are:
** A meat gun, brought back in the ''A Week In Paradise'' mod.
** A staple gun, also brought back in ''AWP''.
** A rebar gun.
** Fire seeking cats.
** Fetuses with guns.
** Rape clowns.
** "Teen sniper". The name of an arcade machine in the game, possibly a planned mini-game or an enemy.
** Pigeons.
** The Dude's father as a zombie, to quote the grave: "Zombie Dad". Yet another thing brought back in ''AWP''.
** And last but not least: The game's original plot, before it became what it is today.