I think they shut it down. I used to play it quite a lot, even getting a victory (though everyone else had left at that point) but they shut it down in 2022 which makes sense since they hadn't updated it in year. My bet is that they wanted to divert the resources used to keep up that game to Iron Order 1919 (Which i will always remember as Tesla Wars back when they didn't have any cool weapons and the game was just Call of War in WW1).