Multiplayer

[@sxttings]

Can anyone explain how to get this to work? I tried Hamachi and it failed. I tried port forwarding but literally NO ONE has posted how to port correctly.

What ports need forwarded? UDP/TCP? I have spectrum and have that admin panel. but no one talks about the range required either. Can someone please help? :/

[snowflitzer]

This game is not really multiplayer ready. This comes up every couple of months and officially it is not possible.
There is a multiplayer mod but it would be better if you exchange your city.

The other issue will be but you can only do it with a vanilla version without any mods/assets.

I would strongly advise against it.

[The Guy You Know Down The Road]

Assuming that you are using the multiplayer mod [https://citiesskylinesmultiplayer.com/#/]. For port forwarding I use 4320 which is also the default port mentioned on the mod's website. If you need to set a range for the router itself I believe 4320 would be both the minimum and maximum. If possible select UDP/TCP or Both.

When in game I am able to load a save and click multiplayer on the pause screen to set up the server. I normally host but I believe if a friend joins me they only need the external IP to connect. If successful the game pauses and will say whoever joined in Chirper chat.

Every router is different so this may not work, hopefully it helps clarify a bit. I linked the website above for documentation on the multiplayer mod but it is on the workshop
https://steamcommunity.com/sharedfiles/filedetails/?id=1558438291