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=668990" 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|
|190216||Steam Sub 190216||CD Key||November 13, 2018 – 17:17:15 UTC|
|190217||Steam Sub 190217||CD Key||November 13, 2018 – 17:18:04 UTC|
|190218||Steam Sub 190218||Free on Demand||November 13, 2018 – 17:16:49 UTC|