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Ah... my life is a mess...
Someone here said it right, you need to understand the essence of the game, its core, which is different from the third installment as much as a horse is different from a car (or a car from a horse, or even a horse-car from a car-horse :). In short, it's not necessary to compare games to evaluate them.
I'll give it this rating: 10 points
Here's why:
1. Mapmaking (and I'm a big fan of it) is excellent - 10 points.
2. The game's graphics (it's not bad, but there are certain drawbacks, for example, the movement of human heroes, which has been mentioned many times) - 8 points.
3. Gameplay (the very first map I played was an adventure for a single hero, with a minimum of castles and a maximum of quest tasks that weren't just "destroy/bring," unfortunately, I don't remember the name. And it was excellent! I played it several times just for the fun of it) - 10 points.
4. Story (I wasn't very interested in the story, as I didn't play the campaign, so I'll leave it without a rating).
5. Sound - 10 points.
6. Game difficulty (it's enough to provide a challenge, but it's difficult to evaluate a game based on this parameter when the difficulty can be changed, so I'll also leave it without a rating).
That's it