This is how the Invite System will work.
[1]You must get a number amount of people to receive a reward.
[2]The people you have invited will get FREE 5000 gold (every person you have invited will get this amount of gold) this will increase the chances of them wanting to join.
[3]Create new topic.
[4]List the names of the people you have invited.
[5]The people you have invited to the server must reply to it to confirm they have joined the server.
[6]These are the rewards for the amount of people.
3 People-Level 70 & T3 & 2 Epic Items (Staff, Sword, Dagger, Ect).
5 People-Level 70 & T4 & 2 Epic Items (Staff, Sword, Dagger, Ect).
10 People-Level 70 & T5 & 2 Epic Items (Staff, Sword, Dagger, Ect).
10 People-Level 70 & T6 & 2 Epic Items (Staff, Sword, Dagger, Ect).
20 People-Level 70 & T6 & 2000 Gold & 2 Epic Item (Staff, Sword, Dagger, Ect).
There is a [EXAMPLE] topic created by me if you do not understand this.