Alphachris on 09 February 2011
"auf Basis der Abverkaufszahlen von media control GfK INTERNATIONAL GmbH."
They use the sales figures from Fessel GFK as a basis for their awards.
"Der BIU Sales Award honoriert seit 2008 besonders verkaufsstarke Spieletitel (Vollpreisversionen) im Bereich interaktiver Unterhaltungssoftware in Deutschland."
Vollpreisversionen means "games sold at full price", so budget titles and bundles should not be included in this figures.
Also take into account that many Germans import games from the UK , because the games are much cheaper, or from Austria because Germany takes censorship very serious. There often is content cut so that the game will be rated 16.
