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=521460" 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|
|123703||Steam Sub 123703||CD Key||August 23, 2016 – 20:33:18 UTC|
|123704||Steam Sub 123704||CD Key||April 3, 2017 – 19:40:55 UTC|
|123705||Steam Sub 123705||Store or CD Key||November 26, 2018 – 15:39:47 UTC|