For each new account that registers to the game via your referral link you receive Friendship points for your character on the first world that they join.
Existing players added to your friends list as well as referred players joining a second world will not contribute to your points!
You continue to receive more points as these players gain levels or spend gold nuggets.
These points are cumulative and are not lost when a referred player leaves the game.
Friendship points can be tracked in the achievement menu under the statistics tab.
How does it work?
The exact number of points rewarded for each action is determined by a secret formula - it is not a one to one relationship.
It is generally more beneficial to refer a couple of players who advance significantly through the game and purchase premium rather than refer several players who quit the game at low levels.
The formula contains internal safeguards against players who attempt to exploit the system through creating these multiple accounts themselves, instead rewarding the recruitment of genuine players who contribute to the longevity of the game.