I also really enjoyed cult of the lamb: https://store.steampowered.com/app/1313140/Cult_of_the_Lamb/
It's a game where you are a little sheep creature that runs a cult. It's a mix of a management game and a roguelike since you go on runs to fight the games main bosses and get items to bring back to improve your cult.
Art style kinda reminds me of Klei's Don't Starve and is probably one of the most impressive parts of the game
Though this one is more well known. Still, I hadn't heard of it before so I think sometimes games with even a big following like this one can stay off the radar a bit unless they are truly massive.
Do we know these are civilian phones? My assumption was these are not civilian phones because why let them bring their phones if there's no cell network to operate on and no internet.
Edit: You might be right it mentions they can get Internet when it's not underway so maybe they have their civilian phones. I am not in the navy so I don't know the procedures. Still bad cuz of the other reasons plus some about giving them the ability to target those networks from a deauth'd perspective but yeah the last reason might not be the case.
It wouldn't shock me tho if they still had access to some like nonclassified but controlled info too on their phones.