Guild Wars Nightfall trailer

As the third main campaign in the Guild Wars universe (2006, PC), this title is a massive online role-playing experience set in the continent of Elona. The core gameplay involves cooperative questing and deep skill customization, but its defining feature is the introduction of customizable AI companions called Heroes. These Heroes level up with you and can be fully commanded, allowing players to field a complete, strategic party even when playing solo, adding significant tactical control over combat composition.