Buddhism is a path that focuses on suffering - and reducing suffering.
Obviously non-violence isn't required - the Shaolin monks have, perhaps, the most legendary kung-fu in the world. But the manner in which it is used (or not used) by the monks is important.
Many of the video games I play are very violent. Yes, they are games, but they do effect your mind.
The other side of that coin is this: chess is a violent game. Yet I doubt that a monk would refuse the intellectual exercise.
Do I need to give up my games? Or would it be less of a "need" and more of a statement?
I have a feeling this is something that will be meditated on at some point.