This game is absolutely perfect for playing with kids. Aside from the cute stories, it involves coloring and you wind up with the terrarium as a physical artifact of the game. I played with my daughter and that's one mason jar I will never get back.
The climax of our story involved helping Clover the frog find a game to play with his grandfather (who we'd met in a previous adventure) because he missed him. The feels!

It'd be a lot of fun for crafty adults too! I'd love to collect real rocks on walks and maybe decorate my terrarium with plastic plants (since I'm unable to keep real ones alive).