HoMM3 HD is a mod (add-on) for the game Heroes of Might and Magic 3.

HoMM3 HD 2.93u

http://sites.google.com/site/heroes3hd/rus/download

A parameter #14 has been added to the HiRez.ini configuration file, allowing you to customize the road type in the game.

Excellent work, baratorch! Thank you. Also, there is even an option to play the game without roads at all, or with the original road settings.
I started testing. It seemed to work fine with types 1, 2, and 3. But with cobblestone roads, it works intermittently or not at all. I tested it on the Jebus Cross template (map size with or without a Dungeon/difficulty/number of computer-controlled heroes/original road type => in the end)
M+U/100/2-0-0-0/dirt => cobblestone
L +U/160/2-0-0-0/cobblestone => cobblestone
L - U/160/2-0-0-0/cobblestone => cobblestone
L - U/160/2-0-0-0/dirt => dirt
L - U/160/4-0-0-0/gravel => gravel.
After that, something got stuck, and it stopped converting M-maps altogether. Then, after some time, I created another M-U map for 2 players - it converted, but not for 4 players.

I have a counter-proposal - to create an additional custom difficulty level, with a choice of the number of starting resources.
- everything original will be preserved, but an additional, flexible, and quite useful option will appear. And I wouldn't say that this will change the gameplay.

Well, the gameplay isn't affected here if the original choice is preserved. And a different choice of starting resources would be suitable for specific tournaments. Also, you can make the turn time customizable.