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New versions of Heroes 3 appear, gain popularity, and then either fade away or lose their former glory. History provides examples of this. However, the classic version maintains its position in the world (although in some regions, there are occasional imbalances). As a rule, new versions remain popular as long as the developers support the game and maintain a connection with the Community. Plus, while a game version is still being developed and changed, players constantly have to keep up with the new features and adapt their gameplay accordingly. Some find this interesting, while others lack the time or desire.
The classic version has been, is, and will be the only officially recognized version of the game by the developers (at least, that's how it seems at the moment). Therefore, organizing a large international tournament (even an inter-portal one) is much more feasible with the classic version. Furthermore, we know of various rule sets (as well as gameplay without rules) for our beloved game, which also contributes to differing opinions on this matter.
In general, each of us can express many different opinions. But in the end, either the HotA or SoD players will organize a tournament, and those who want to will play. And there will always be those who want to play – the question is only about the number and skill level of the players, the rules, and the organization of the tournament. Moreover, there are plenty of players who play both versions (versatile players).
I am always in favor of uniting the Community, but as long as new versions continue to appear, divisions are inevitable, whether we like it or not. And we've heard the cries that SoD will die, it's worse, and so on, many times (both on portals and in streams, comments).
HotA is not personally interesting to me, but any version of the game popularizes Heroes 3. And when a player comes to a portal, they will decide for themselves which version to play. The portal does not hinder the development of either version; on the contrary, it helps in this. So, let's look forward to new tournaments and new players in any version, and then history will put all the points over the "i".