Regarding the Ruby and Slice company. I started my (bookish) "The Shadow of Death" game. On the 2nd day, I capture Morgenheim. It already has a goblin barracks and an orc tower. So now I can either build a wolf den or upgrade the goblins. And no hacking!

I want to save the game through autosave, but it says - failed to save the game as AUTOSAVE. I think I'll save it manually. It says the same thing.

Firstly, the game only autosaves when you end your turn - you don't need to save it then. Specify your own file name.
Secondly, are you writing the file name as "AUTOSAVE"? Exactly like that, in Russian? What if you use English letters?
Is the game single-player or multiplayer?