As the fourth installment of the series, Heroes of Might and Magic IV brings many new features to the game while retaining the old interface design and gameplay.
The game still is about exploring huge maps with your heroes and armies, collecting treasures, building up cities, fighting monsters and defeating your foes. There are six new and large campaigns and 24 single scenarios to play. 48 new hero classes and many new skills have been created so the game is even heavier on the strategic side as before. You now can lead multiple heroes to battle as well as separate troops from heroes (so you may move troops alone to another hero).
The new battle screen has now isometric view instead of side perspective. And now your heroes may fight side by side with your soldiers and be used for real battle, not only magic.
New Heroes for a New World (An Apple Games article about the Mac version of Heroes of Might and Magic IV, with commentary being provided by Brand Manager Chaz Fitzhugh (November, 2002).)