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=660840" 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|
|187333||Steam Sub 187333||CD Key||June 17, 2017 – 04:00:34 UTC|
|187334||Steam Sub 187334||CD Key||June 17, 2017 – 04:00:34 UTC|
|187335||Steam Sub 187335||Store or CD Key||August 28, 2017 – 15:19:25 UTC|