No revenue estimate for PSN — its rating/review counts don't calibrate to sales the way Steam's do. The Steam version is estimated at $3.9K — a different platform, not this one.

Aery - Calm Mind 4

Aery - Calm Mind 4 is an interactive game experience that is designed to relax your mind and soul. You jump into the role of a little bird, explore beautiful landscapes and collect magical crystals that mark certain landscapes. Because there are no enemies or any other danger in this game you will be able to lean back and enjoy the scenery and the sensation of flying. It is a great game for relaxing and calming down after an exhausting day full of hassle. Of course, you can always select the level that you feel helps most to relax yourself. Most levels can be finished quite quickly so that you can freely choose spend time exploring the environment but you don’t have to stay for too long if you are just looking for a short moment of peace and enjoyment. This game features a collection of some the most beautiful sceneries from the Aery franchise. We hope you like them. So lean back and take a deep breath…