This app has been deleted or is hidden to the public. There is extremely limited to no information about this app.
We don't even have a name, hence why we are displaying SteamDB Unknown App "AppID".
If you see someone screenshot a page like this and add some information/images on it, it is most likely fake.
Every change is tracked in history, and can be directly linked to.
<iframe src="https://steamdb.info/embed/?appid=520370" height="389px" width="100%" scrolling="no" frameborder="0"></iframe>
Initializing graph of a week…
Initializing graph of a year…
|SubID||Name||Billing Type||Last Updated|
|123295||Steam Sub 123295||CD Key||September 18, 2017 – 17:22:58 UTC|
|123296||Steam Sub 123296||CD Key||September 18, 2017 – 17:22:32 UTC|
|123297||Steam Sub 123297||Store or CD Key||September 4, 2017 – 06:19:03 UTC|