You Can Have Hamachi From =
www.hamachi.ccAfter Download Install It To Your Pc And Press "Power" Button.
You Will Online Of Hamachi.After That Find "Networking Menu" Button And Press "Jon An Existing Network" It Will Ask You "Network Name" And "Network Password" You Can Find Them In "Hamachi" Text Inside Of Last Patchs.
When Wanna Leave Network (After Exit Game) Press Right Which Room You Are Inside And Press "Leave Network"