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=604590" 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|
|159106||Steam Sub 159106||CD Key||March 3, 2017 – 13:08:06 UTC|
|159107||Steam Sub 159107||CD Key||March 3, 2017 – 13:08:06 UTC|
|159108||Steam Sub 159108||Free on Demand||October 22, 2017 – 18:18:55 UTC|