I've bought the steam version of galciv3 specifically for multiplayer with my wife. I'm sad to say that after a certain point we can't continue our games because one of the clients will crash. As in: She's hosting, waiting in the lobby for me and when I try to join one of our clients crashes. Mostly mine. We play without any mods. We tried turning off windows defender firewall. Maybe its noteworthy that loading did take quite a while before even though we both have pc setups way above the recommended specs.
Thanks in advance for helping us here, we need a 4x game to play these days more than ever and the AI is just too bad in any other :/
Edit: This doesn't happen at the beginning of each game although we had some crash issues there aswell.