How to block games in Facebook

1. When you see notification or anyone sharing any games, just hover over to the top right hand corner and click the the downward arrow 
2. Select HIDE ALL FROM ______ (whatever games you want to block)
3. You will get a notification that you won't see that game anymore.

Sometimes we get notification and invitation from our friends. It doesn't mean that they sent it to you, the games auto sent it themselves. So if you don't wanna get any notification of games, you can do this without "unfriending" your annoying friend. :D