Not sure if it required an online connection but I was only playing it for single player. In fact, I don’t even remember there being a multiplayer component so not sure why it needed servers. Steam version(which still is available) only mentions single player.
Another game to not delete, I guess. It doesn’t seem like it needs internet to play, I just checked it out. No multiplayer either. Unless they added that later and I never updated. Edit: Yep, The version I have might be the first version. There are no iap on the one I have. The app icon is also still the old red and white N on it.