Unterhaltungssoftware Selbstkontrolle
The USK has been founded in 1994 and has it headquarters in Berlin, Germany. Around 30,000 video games have been checked for approval since the beginning; every year more than 1,000 games are submitted by publishers. USK defines itself as "the strictest age classification rules in the world". The game is not allowed to be sold in Germany if there is no USK verification.