One day, years back, the heads of all the major game developers sat down and had a meeting. After talking for a while they decided to hatch an evil plan; spew out so many games in as short a time as possible so that the entire male 15-30 demographic would be out of action for anywhere from one to three months trying to catch up. The optimal time for this was without question the end of the year, when everyone has the most to do. While they were all playing all the excellent games, the developers would take over the free world and establish an evil dictatorship with event outcomes based on quicktime events and everyone would be doomed to a life of endless fetch quests.
That's what happened. Don't believe me, walk into a Gamestop and try to come up with a better explanation. Me, I like conspiracy.