What is your opinion about Heroes IV?

The fourth installment was the second game in the series after the third. However, what I like most about the fourth game is that you can create real quest chains, and you can make many of them. And there are no standard victory conditions; you just write them and then create the victory yourself! Also, maps like "Jester's Revenge," "Dragon's Head," "Eye of the Tiger," and "Midnight Nightmare" are impressive, with their well-designed maps tailored for monsters. The last one is my favorite.