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

(the last) option in the text file: HD3Launch.exe -> More options (ini file)... -> Tournament Module
= 1 - enabled.
= 0 - disabled.

if = 1, then:
1. the game automatically fixes map bugs (hero duplication, cities turning gray, etc.),
2. in single-player, there is a 'invite hero' option in the tavern,
3. movement points are displayed,
4. the following options are available in the game:
a). 'fix game bugs' (selling artifacts, peeking at the opponent, leaving a hero without an army, pikemen in the mercenary camp - this bug is only fixed in multiplayer),
b) 'start the timer after pressing 'Ok''
c) 'protected saves'
in addition:
5. continuous display of the remaining time for the turn, regardless of which window is active.
6. chat in the city window,
7. template selection directly in the game,
8. the ability to customize alliances.
I don't think I forgot anything...

if = 0, then none of this is in the game.
by default, Tournament Module = 1

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is it possible to add an option that allows saving saves without archiving them?

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the ability to launch the game with an .exe file without options will be added in the next beta.

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the rendering in the city is a known bug for stretched 32-bit MMX
- it will not occur if you don't move the mouse after entering the city until it appears on the screen (on slow machines, the bug manifests not only in the city). I don't know how to fix it yet.