Question about "Serious Engine" ".gro" archives

[L33THAK0R]

FINAL UPDATE 04/08/2021: After extensive testing and discussion with a couple technical leads on the title "The Talos Principle" (under the guise of modding possibilities), it seems it is NOT possible to currently get the title to run with its archives unpacked, as any modification to the archives invalidates the internal CRC check process at run-time. There isn't any plans to make this possible as far as my discussion with said developers is concerned, as there aren't any justifiable reasons to enable this functionality, as currently modding doesn't require for the archives to be unpacked. Perhaps someone will do so in the future, but it won't come from the modding community.

Originally Posted by FitGirl

Afair all games on this engine has a separate exe to run them in modded state, in which signatures are ignored but MP is obviously not working.

I think "Talos_Unrestricted.exe" is the executable in question in this instance, but I was hard-pressed to find any actual information about it. I'm not sure if there's a proper method to modifying the ".gro" archives (perhaps using the included game-editor?), however attempting to modify the archives using "7zip" results in a file verification runtime error, when using either executable.

I'll continue to research & experiment with this.