I am not a gamer, but I know that there is a "double tap to zoom feature" in Chrome or a "pinch to zoom feature". To return "tap to zoom" to normal double tap again or lay your thumb and forefinger on the screen and pinch them together. For "pinch to zoom" to expand the screen place your thumb and forefinger on the screen pinched together and spread, then use the reverse pinch motion to reduce the screen. Either of these features could be available in your game and this may lead you in a direction to solve your issue. If this does not lead you to a resolution, post the names of the games where you have the issues and I am sure we will have some members, who are familiar with the games.