Heroes of Might and Magic IV 4.0

Heroes of Might and Magic 4 is radically different from Heroes of Might and Magic 3. Some of the major differences are:
3D perspective on the adventure map and on the battlefield, heroes now take part in battles along with their creatures, six towns with standardised graphic layout, no more creature upgrades, requirement to select between creature dwellings, addition of potions, heroes of the same type are identical, different primary and secondary skills system, more spellcasters among creatures, schools of magic are aligned with town types, creatures can walk on the map without heroes. Clearly, the intention has been to make a unique game, not a bigger and better Heroes 3.
Heroes 4 was obviously underfunded - the game release was dellayed significantly, campaign scenarios only feature drawn pictures which often repeat between different campaigns, and the multiplayer feature was implemented only after the game release. Many fans were severely disappointed by Heroes 4, for many valid reasons. It caused a noticeable decline over the entire online Heroes community.