What is your opinion about Heroes IV?

It wasn't a revolution, but rather a clear evolution, an example of quantity turning into quality, and quality turning into a new quality. It was the development of the original idea about powerful heroes leading entire armies into battle. The game was initially called "Heroes," not "Warlords of the Sword and Magic." In the first part, they implemented it as best they could, and in the second, they refined the ideas from the first. The further refinement in the form of the third part (in my humble opinion) didn't quite succeed, as it felt monotonous. And that's when the qualitative leap occurred in the form of the fourth part. But firstly, they didn't have enough resources (they needed a continuation to refine all of this), and secondly, most players weren't able to make that same step. The immense popularity of the third part, despite its relative simplicity in its core mechanics, also played a cruel trick. (There's no need to talk about serious, complex games with 10-minute turns, because turn-based gameplay is a "flaw in the mechanics," not a "feature.") It became a tombstone for the series for me. Because "focusing on the third part" is a death sentence, confining the series to rigid boundaries. While other TBS games continue to evolve, the "Heroes" series, burdened by this constraint, revolves around a cult that cannot be abandoned (opinion), but also cannot be surpassed (nostalgia).