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

Eleondor, no, development started with studying the executable file of Heroes 3. There were no source codes, and there still aren't any. zoog, I've already implemented support for numpad in my version; I just need to send an update to Baratortch so he can include it in the next version of the HD mod. Also, I have some ideas for a new mod with a bunch of extra hotkeys, but it's still in a raw state, and I haven't had the time to finish it. And doesn't Esc work in all the screenshots? When I play, I use it constantly.