As a IT specialist I can tell you that not every router will response to a NAT punchtrough from a client.When you open up the right port in your router and forwarded it to your PC (Host) as mentioned in the game settings menu. (TCP and UDP) It will work for sure.Please note that only the host need to do this!!!Co_Karoliina will there ever be a dedicated server available for this game so players can leave and join the session when ever they want?Will there also ever be a future that the map or savegame the host started will be transfert to the other players that are joining and doesn't have the map/savegame?I do love the game allot!!!