Postal 1
http://store.steampowered.com/app/232770/
Postal 2 + the 3 mates option (4 keys)
http://store.steampowered.com/app/223470/
Experience a week in the life of the "Postal Dude", an unhappy average citizen just trying to do his daily chores - shopping milk, bring back a borrowed book to the library, get an autograph from Gary Coleman … what could possibly go wrong?
Shoot, chop and piss yourself in the first person perspective through an exaggerated American freak show in which there is no shortage of black humor. Meet Krotchy, the rotten toy mascot, visit the besieged system of religious worship from your Uncle Dave and fight against those living in the sewer Taliban when you least expect it! Endure the sphincter-press challenge of cannibal rednecks, corrupt cops and berserker elephants. Accompanied by Champ, your halfway loyal pitbull, battle your way through an open world that is populated by an incredibly unpredictable AI. Do you use an arsenal of weapons that range from a simple bucket to a unique, hilarious rocket launcher.
Collect a pack of attack dogs! Use cats as silencers! Pissing and pour gasoline on anything and everything in its path! YOU KNOW YOU WANT IT!
desc gladly ripped via google translate
Did anyone else think this guy made a typo and thought it was meant to be Portal?