[peopleoftheway]

Very commendable Brother. What I have noticed personally from video games (particularly online) is the increased anger towards other gamers, the in game "chat" becomes nothing more than a cess pit of filthy comments and derogatory statements to others. I was involved in online gaming via a clan when I was not right with the LORD and it consumes, in a way that as you mention is very subtle and it takes months before you realise how the game has "changed" you.
It is Highly addictive and most definitely a tool of the Devil to ensnare unsuspecting youth.
Although I do have a confession, I play Tiger Woods 2008 On the PC but thats it, I like playing Golf.
I am Glad The LORD Jesus Christ has shown you the error and corrected you, May he Bless you in your ministry to others in the same position.