I decided to write this guide in order to explain how to use RadminVPN to play sacred online. RadminVPN is a software similar to hamachi but better, because it allows more people to a server than hamachi.
Let's begin :
-Download RadminVPN clicking on "free download" following this link: www.radmin-vpn.com/
-Once downloaded, follow the setup to install RadminVPN
-Start RadminVPN, choose your username clicking on system ---> change name
-Join a network going on network ---> join an existing network
-Try to join a network, I'll leave here my own (mainly italian players) for you to try: name ----> SacredOnlineCommunity , password ----> sacred
-At this point you should be able to see online and offline users
-To create your own server use the gameserver exe in your sacred directory, carefully using the IP address under your RadminVPN username in the IP adress field
-Start Sacred ---> go to options ---> check "modem" in the internet settings
-Finally go to local, choose your character and at this point you should be able to see your own session created with gameserver and those created by other players in the RadminVPN server.. and now you should be able to enjoy sacred with your friends!
Common errors/problems that are usually fixable with those solutions (AKA try those out if you are having any kind of problem)
-Start RadminVPN, gameserver and Sacred as administrator
-Add Sacred, gameserver and RadminVPN as exception in your firewall (check on "private" and "public")
-Port forward the following doors in your router: from 2005 to 2010, 7064, 7065, 7068, 12300, 4899. Restart your router and computer
-Different routers require different steps to port forward. Find your router in this list and follow the steps in the website: https://portforward.com/router.htm
In the hope of seeking the final and best solution to enjoy Sacred Online together, I hope everybody a great time!