Did you just find a download or a file on your computer that has a digital signature from Gameforge 4D GmbH? If so, please read on.
You will typically notice Gameforge 4D GmbH when double-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 the digital signature details for Gameforge 4D GmbH with the following steps:
Here's a screenshot of a file digitally signed by Gameforge 4D GmbH:

As you can see in the screenshot above, the Windows OS reports that "This digital signature is OK". This means that the file has been published by Gameforge 4D GmbH and that no one has tampered with the file.
If you click the View Certificate button shown in the screenshot above, you can view 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 Gameforge 4D GmbH, such as the street name, city and country.
thawte SHA256 Code Signing CA has issued the Gameforge 4D GmbH certificates. You can also examine the details of the issuer by clicking the View Certificate button shown in the screenshot above.
These are the Gameforge 4D GmbH files I have gathered, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 0/55 | gfl_client.exe |
| 0/57 | gfl_client.exe |
| 0/55 | GameforgeLive.exe |
| 0/58 | 4Story.exe |
| 0/65 | metin2_installer.exe |
The detection percentage is based on that I have collected 290 scan results for the Gameforge 4D GmbH files. 0 of these scan results 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 based on certificates with the following serial numbers: