Did you just download a file that has a digital signature from GSC Game World and wonder if the file is safe? If that's the case, please read on.
You'll probably see GSC Game World when clicking to run the file. The publisher name is displayed as the "Verified publisher" in the UAC dialog as the screenshot shows:

You can view additional details from the GSC Game World certificate with the following steps:
Here is a screenshot of a file signed by GSC Game World:

As you can see in the screengrab above, Windows states that "This digital signature is OK". This means that the file has been published by GSC Game World and that no one has tampered with the file.
If you click the View Certificate button shown in the screenshot above, you can see all the details of the certificate, such as when it was issued, who issued the certificate, how long it is valid, and so on. You can also view the address for GSC Game World, such as the street name, city and country.
Thawte Code Signing CA has issued the GSC Game World certificates. You can also view the details of the issuer by clicking the View Certificate button shown in the screenshot above.
The following are the GSC Game World files I've gathered, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 0/55 | xrEngine.exe |
| 0/57 | setup.exe |
| 0/43 | setup.exe |
| 0/57 | setup.exe |
The detection percentage is based on the fact that I've collected 212 scan results for the GSC Game World files. 0 of these scan reports came up with some sort of detection. If you like, you can view the full details of the scan results by examining the files listed above.
The analysis is done on certificates with the following serial numbers: