I believe this question is within the scope of the site. The restriction on gaming questions is meant to keep out questions like
How do you get past level 8 in Portal on PC?
"But the game is software, and this is a site for questions about using software!" is the argument this restriction is meant to cut off.
Questions about installing or configuring software, even games, are perfectly fine by this interpretation of the scope of the site.
As mentioned in a comment above, there is an old meta post from Jeff Atwood that spells out this position.
So, yes, this question is in scope. However, in my opinion, it is also lacking in detail that would allow anyone to answer the question. If you have logs or any details about your installation (from Steam?), you should edit those into your question. After that is done, I think the question is a good candidate for reopening.