Batman: Arkham Origins steam

full list of those codes expanded into country names (restricted regions):

AM – Armenia

AZ – Azerbaijan

BY – Belarus

CN – China

GE – Georgia

KG – Kyrgyzstan

KZ – Kazakhstan

MD – Moldova

RU – Russia (Russian Federation)

TJ – Tajikistan

TM – Turkmenistan

UA – Ukraine

UZ – Uzbekistan

Batman: Arkham Origins features an expanded Gotham City and introduces an original prequel storyline occurring several years before the events of Batman: Arkham Asylum and Batman: Arkham City.