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

Medium_HP, thank you, I didn't expect you to figure it out without instructions. I'll find the time and publish the packs. I'll also find time to add convenient management of them to the launcher. The language you choose in the launcher determines whether the game will display 'Road Type' or 'Тип дорог', etc. (i.e., text that is not in the original), and nothing more.

What about our "wish list" regarding information about spells during battle, so that 3 spells are not displayed, but 5-6 spells and the remaining number of rounds of each of them (preferably - as a number on top of the picture)?

This is not likely to happen in the foreseeable future. There is still no 'buy all' button in the city window, for example. This is unacceptable.