Error code is: The NVDIA openGL driver detect a problem with the display driver and is unable to continue. The application must close.
Error code: 3
Viewing post in Strive:Conquest GPU crash
It appears that you have posted the Windows error message, which seems to indicate that either your driver is the problem or your system lack another resource like memory. As the game only uses about 312MB of RAM, I don't expect memory to be the problem unless you added a lot of portrait packs or images.
If you run the game using the Batch file named "Strive for Power 2 - console", then the Godot engine will post it's own error messages to the terminal, though I don't know that it will reveal anything new.