LMAO. Thanks to all the hype Symantec and others made with their "GAMING MODE" and "GAMING ANTIVIRUS" mumbo jumbo.
I've been using antivirus software for a decade and a half, been gaming for as much time and gettinga virus while gaming is less likely than winning on lottery. I mean, you're not even accessing a major part of infection vector (browser and the internet content within it).
Besides, gaming mode just hides the popups. Usually, antivirus kinda displayed the popup anyway in the past but it was left in the background. Now they tend to jump all over the screen and minimize the game. And so they had to introduce the awesome gaming mode.
I kinda feel the ALWIL guys. They had to make one, because everyone else had it. So ppl don't wonder why avast! doesn't have one but others do.