Talk:Friend Invitation Campaign/@comment-24.4.177.203-20141016031432/@comment-25431746-20141016032052

the invitor get 1 crystal for each invitations and 5 crystal after on the 5th consecutive invites...

eg: you invited 10 players
 * 1
 * 1
 * 1
 * 1
 * 5 (the 5th invite)
 * 1
 * 1
 * 1
 * 1
 * 5 again (the 10th invite)
 * and so on

If you are the invitee, just enter some random person code, and you earn 5 immediately.