A referral system is an automatic reward system for a player you invite to the server.
To do this, you need to go to the Control Panel on the Site in the Referral system, copy the link and share it with other players. Accounts registered using your link automatically become your Referrals and if they reach a certain Grand Reset, you will receive Bonuses and you will also receive 5% of the Donations from Account Panel(With PayPal or Yoomoney) that your Referral made.