The standard ending scenario in Adventure Mode has been modified: the mana limit is now 105 units, and the number of Thunderbirds available in this mode is limited to 1 unit.
The status of the standard ending has been changed. An additional epilogue dialogue is displayed after winning the battle in the standard ending.
The ability to spawn the "Orb of Constancy" artifact on the Adventure Map has been removed. This artifact is now part of the quest to find the "Heart of the Oasis." A corresponding quest has been added to the Stronghold base.
The behavior of the hero Gervulf has been changed. He is now a guard at the tower in the Mercenary base. The standard commander type has been restored for this hero (related to the possibility of some Ballista units disappearing).
The monsters of the hero Siren have been changed. The special abilities of the new monsters have been modified to make capturing the base more challenging during the first visit (to avoid the player obtaining the Elixir of Life too early).
The special abilities of the Hydras have been changed (to make the battle with the hero Vistan more challenging).
The conditions for obtaining the Ring of Power have been changed (for this quest, the number of required resources has been increased, and the types of required resources have been reduced to sulfur and mercury).
The condition for accessing the Altar of Transformation has been changed (access is granted after completing the quest to find the Guide). Before entering the Training Arena near Shevchenko, an explanatory dialogue is displayed, warning against prematurely upgrading units available for hire.
A condition has been set for accessing the shipyard (access is granted after talking to the Troglodyte-Mycologist). An additional dialogue with an explanation has been added.
Access to certain objects, "Hidden Bribe" and "Demon Lair," has been restricted in the later stages of the game.
The progression of secondary hero skills has been changed. At the start, it is only possible to learn Wisdom and magic element skills. All other secondary skills are learned either by purchasing them in the School of Magic/Battle Academy or with commander artifacts.
Commander artifacts equipped on a hero now permanently grant the basic version of the secondary skill (it remains even after the artifact is removed, if a more advanced version of the skill is available; further improvement is not granted).
The castle building has been removed when upgrading Shevchenko after completing Friedman's quest.
The cost (in gems) of purchasing Archangels and upgrading them to level 8 has been increased.