I just purchased and installed War For The Overworld on GOG Galaxy (10-08-2017).
After the WFTO splash screen the startup screen appears with the " Patch 1.6 Creature Comforts" build.
The popup message box appears stating:
A critical error occurred during game start:
An exception was thrown by the type initializer for Galaxy.Api.GalaxyInstance.
The game cannot start. Please report a bug using our Bug Tracker. The game will quit." Game Version: GOG Galaxy Platform: Windows 10
64bits 16 Go ram.
Since this problem is similar to another user's a couple of months ago, I followed the advice posted there : downloading the two C++ 2013 redists, started by repairing, rebooting computer and trying again, no luck. Tried uninstalling the redists and reinstalling them, rebooting and launching the game once more, again no luck, same critical error on startup.