When you get too much to receive an invitation to use the app or game, you will very uncomfortable. That's why you need to block the application from someone or block all invitations for a game. If you do not need unfriend or block someone, this tutorial will be useful to you.
First, you have to log in Facebook:
Next, go to Facebook Blocking Tab, you can click here and go to Blocking Tab quickly:
Then, scroll down to Block app invites:
Next, enter the name who you want block all app/game (here is Mollie Handley)
First, you have to log in Facebook:
Then, scroll down to Block app invites:
Now, you will never receive app from this person. If you want get app again, click Unblock:
If you don't want get invite from a app/game, scroll down to Block apps and enter name's app (here is Candy Crush)