Not everyone likes getting constant game requests from friends. This is a simple most effective way to completely block Facebook game requests.
This tutorial is to be followed using and android or iPhone.
Block Facebook Game Requests
1. Open the Facebook app and tap on More on the bottom right, then scroll down and tap on Account Settings.
2. Scroll down and tap on Apps.
3. Now tap on Platform.
4. Finally under “Game invites and App Notifications” select NO or OFF. From now on you will never get any game invites.