Solo

A term that means venturing into explorable areas, quests or missions without a party or a party made up of only henchmen. In Pre-Sear Ascalon, it is very possible to complete all of the missions and quests solo, but as the story progresses it becomes increasingly more difficult. In Post-Sear Tyria the strength and number of enemies in a given area is usually balanced against the maximum allowable party size, so going out with less than the maximum, or with only NPC allies (which often react illogically) is usually a recipe for failure.

Additionally, some classes are better suited towards soloing than others. A Warrior, for instance, is generally able to survive the damage meted out by several mobs attacking at once, while a Mesmer is less so.