Postal 2

Postal 2 made by running with scissors studios is perhaps one of the most intentionally rude and controversial games on the market. Made in 2003 based off of the game and movie "Postal" you play as "the postal dude" an average everyday guy who if the player wants becomes a psychotic homicidal maniac.

Postal has a campaign that spans from monday to friday and only consists of doing seemingly menial tasks like buying milk or returning a library books and end up with you killing anti book protesters in a burning library or just urinating on everyone to put out fires. You will travel to a multitude of places like your crappy broken down trailer to a Taliban training facility.  While you start with no weapons you can easily find them strewn all over the place and they range from a shovel to a high explosive rocket launcher. The npc's interact with you hilariously and respond to your actions accordingly. Some of the most fun i had with the game is on the second day where you need to collect petitions which leads to some really funny but rude dialogue between you and the bystander.

Postal 2 was a great way to relieve stress believe it or not and I found it to be a therapeutic game for when you just can't take anymore crap