I also installed Raven Shield for PC but I have really big troubles connecting to anyone through GameRanger. It seems RvS doesn't like my router setup :-(
Hi Mauti! You have to get steam and download RvS there. Once you have it downloaded, follow the tips in steam community to update your game so it doesn't require any login or cd for multiplayer gameplay. You can refer to the clan r6 which has created most of those updates since ubisoft let down RvS support on PC. Join their discord app for any questions.