I was checking my old questions and I noticed that this question got
almost 2.5k views!
So I thought now that I've figured it out I should answer it myself so
others can use it.
Well, if I remember correctly, all i wanted at that time was this
It doesn't even need an API Key. It gives you a list of ~16k AppIDs,
that includes all steam inventory items.
This link and the link I gave in the question above works for getting a
list of all items.
Just deserialize the JSON into a class that you can easily make for this
JSON string, then you can do anything you want with the list of games or
I suggest adding Newtonsoft.Json to your resources too as it helps