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

I'd like to know more about HotA, could someone please make a review.

It is written very well about HotA here (the whole essence of the game in one image):
http://lurkmore.to/Файл:Dota_leveling_rules.jpg
If you want it even shorter, this game is not for Russians.
:smile10: