Tournament preparations!

You are comparing a game with a good Multiplayer mode, which, in my opinion, is designed specifically for playing with other people. That is why regular games in Heroes turn into Tournaments, that is why Heroes 5 has a Ubisoft server designed for games between people, and so on. There are many such games, and not only in the fantasy genre, but the difference from RPGs is that they focus on the plot and single-player mode. For example, Oblivion exists only in single-player mode, and the ability to play it as a team is only available in a patch.

So, let's start with the fact that this Multiplayer is not used at all in Offline mode. Also, there doesn't seem to be a Multiplayer in the first Heroes. Oblivion and King's Bounty are worlds apart; I hope you've played King's Bounty? This game is closer to Heroes than to Oblivion.
If you mean that if a game doesn't have a Multiplayer, then there's no point in holding Offline Tournaments for it, then why are Tournaments for King's Bounty 2 still being held, as I already said?

Therefore, holding Tournaments for it is more of a desire to compete in everything. Maybe some people like it.
It's all just my opinion.

Well, Zubr, that's your IMHO. I won't argue about whose IMHO is better, and whether it's about "competing in everything," I haven't seen such fanatics yet. But a hundred quests, a huge world, and a lot of parameters, both your own and for each of the four spirits, special features like wives and children, it seems to me that this is a perfectly reasonable platform for holding an Offline Tournament. Another thing is that I agree with Adelaide; I also think that it is still too early to hold such a Tournament on our forum. However, there are prospects. When an add-on with a full-fledged map editor appears, then Tournaments for King's Bounty will definitely become popular.
Hero In, here's the link to HL: http://forum.heroesleague.ru/viewtopic.php?t=11082.
I also want to draw your attention to the official website of the game: http://www.kingsbounty.ru/