I absolutely adore lost and found games, and Philippa Mort does an incredible job with Lost Post. From the moment you open the game, Philippa sets the mood with art, color, and wonderful prose.
There is an amazing set of options throughout. All the prompts - from the opening Act and all the different Carriers of your lost letter - are beautifully written. The writing drawing you in and making it easy to imagine yourself as the letter trying to find its way.
This game is definitely worth your time.