The innovative Nemesis System created unique personal stories through procedurally-generated enemies who remember every encounter and are differentiated by their personality, strengths and weaknesses. Middle-earth: Shadow of War expands this innovation with the introduction of followers who bring about entirely new stories of loyalty, betrayal and revenge. The Nemesis System is also expanded to create a unique personal world through Nemesis fortresses, which allows players to utilize different strategies to conquer dynamic strongholds and create personalized worlds with their unique Orc army.
An important aspect of the Nemesis System now comes in forging, customizing and leading your own army of unique Orc followers against the fortresses of Mordor. There are different ways to do this, including dominating Orcs by exploring the vast open-world and encountering them as part of Orc society, or players can acquire Orcs and other items through the Market (in-game store).