I’ve been spending time lately playing Hot Springs Story on my phone. It’s by the same (Japanese) company that made Game Dev Story. Originally I started Pauline playing it because it was a more interesting topic for her than making games, but then I started playing too when I noticed it was on sale for $1.20!
I think it’s a better game than Game Dev Story mainly because the game mechanics are more refined (although the basic principles and flow are the same as Game Dev Story). Both of the games have a short build-wait-reward cycle which makes it addictive and time consuming. But thankfully there aren’t a ton of unlockables so you can be done with it and get on with your life after a week or two. Well worth for the small cost, unless you don’t have time for such things.