Best advice to keep new players is to make sure the game is less buggy on mobile. Most people in the world access the internet via mobile devices now. Making a game that is only free of bugs by using a PC is acting like it's the 1990's again. It's 2021. Mobile or bust.
Was playing the game in a browser on a tablet earlier (don't get me started on the app) and I was using Chrome because it's the best of the bad options for the game. I couldn't move resources between villages without refreshing nearly every time I changed a village on the screen. It's was just plain obnoxious.
I'm addicted to the game, so you got me. But if I was new to the game and just learning it, I would call this game trash and move on - the very first day.
Fix the bugs on mobile. That's how you increase the playerbase.