I've been trying to bring up the console for imperator for a while now and it simply will not work ingame. I tried typing "-debug_mode" into the command line but then I can't start the game... is it different for GoG?
That's weird, bringing up the console works for me, even without any command line options... maybe... (sorry for havig to ask such a stupid question but sometimes people do overlook the weirdest things) have you accidentally turned on ironman mode?
If not: What keyboard language are you using? It might just be some weird combination for you... or maybe you could switch it to English during gameplay...