I received this game from the GOG giveaway and was able to play it yesterday.
Today when I started the game it froze my PC. I tried to verify/repair the game using Galaxy but it didn't help.

The game appears to be working though, when I start the game and click away while letting it start and load up. If I do click/select anything in the game (such as select any of the menu options at the startup menu) my whole PC freezes and stops reacting to anything else than hard reset.

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System Information
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Time of this report: 3/21/2020, 10:39:43
Machine name: XXXXXXXXXXXXX
Machine Id: {91B142E9-FEB4-4309-9D4E-94EEB3686940}
Operating System: Windows 10 Pro 64-bit (10.0, Build 18362) (18362.19h1_release.190318-1202)
Language: Finnish (Regional Setting: Finnish)
System Manufacturer: MSI
System Model: MS-7693
BIOS: BIOS Date: 05/12/15 15:30:43 Ver: 04.06.05 (type: BIOS)
Processor: AMD Phenom(tm) II X6 1090T Processor (6 CPUs), ~3.2GHz
Memory: 16384MB RAM
Available OS Memory: 16346MB RAM
Page File: 5468MB used, 27261MB available
Windows Dir: C:\WINDOWS
DirectX Version: DirectX 12
DX Setup Parameters: Not found
User DPI Setting: 96 DPI (100 percent)
System DPI Setting: 96 DPI (100 percent)
DWM DPI Scaling: Disabled
Miracast: Available, with HDCP
Microsoft Graphics Hybrid: Not Supported
DirectX Database Version: Unknown
DxDiag Version: 10.00.18362.0387 64bit Unicode

Try to start the game without the Galaxy Client, i.e. invoke the .exe file of the game directly.
There seems to be an issue with Galaxy that may be fixed already.