The game takes place a few days after the events of the first part of Orcs must die!. The Sorceress is trying to escape from the crowd. And suddenly, mysteriously, a massive split opens up next to her. She crosses the threshold and finds herself in the Dwarven Mines, right in front of a War Mage who now works at the mines. She enlists his help in the fight against the orcs. But the two discovered that more and more cracks are opening up in different places. They decide to enter the rift and return to the Dead World.
You play as the War Mage, the headstrong hero who charges into danger or play as the more strategic Sorceress who keeps The Mob at bay with mind-control and magic.
You have to defend new fortresses and mines of gnomes, as well as destroy tens of thousands of orcs and other monsters — at your disposal a variety of weapons, spells, guards, traps and amulets. You are given the opportunity to go through a new campaign with friends in a joint game - or fight for survival in endless mode!