There were password-protected save files in one of the 3.0 beta versions. I quickly put them together there, just to demonstrate that they would finally be implemented. But then I removed them from the subsequent beta versions because they were too raw. I'm currently refining and polishing them. They will most likely appear in a usable form in the next beta.

Password-protected save files are not a 100% anti-cheat solution. We also need to implement a check for the originality of resources (text tables, definitions for 'terra incognita'). To do this, we need to select standard resources for tournament play. Who would like to suggest them? And we also need to implement protection against ArtMoney.

P.S. I always seem to disappear in the spring and summer. I just have a lot of work during that time. I think I'll release the final 3.0 version in the fall.