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=507500" 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|
|117176||Steam Sub 117176||CD Key||October 17, 2016 – 17:44:12 UTC|
|117177||Steam Sub 117177||CD Key||July 26, 2016 – 19:42:55 UTC|
|117178||Steam Sub 117178||Free on Demand||November 8, 2016 – 19:45:16 UTC|