The mausoleum has been changed (now it gives +5 to random hero stats once)
After completing the "Dark Mage" quest, you will receive the Tome of Dark Magic
Sulfur has been added to the secret passages
Now, entering the underground in a random location is not a one-time event; you can re-enter several times
Added 2 minutes ago
You cannot get to the red Dungeon, where the staff and cloak are located, which are also vital for capturing the last city.
These Dungeons appear randomly when a hero enters through the entrance in the north, so you were just unlucky (now you can enter the underground again and again)
P.S. the same applies to the secret passage under the garrison.
Multiplayer: Господство, Извечное противостояние, Война за Магию, Торговая империя, Анатомия войны, Эксперимент
SingleScenario: Последний Рубеж, Трон, Элиралис, Вернуться домой!, Лабиринты разума
Campaign: Колонизация