Glossary

Achievement - account-based system tied to a player's Blizzard Account ID, tracks achievements in all Blizzard games to determine "Blizzard Level".
Adventure - semi-random mini-quests that doesn't tie into the overall plot.

Battle.Net - Blizzard's online match-making component for several of their game franchises.
Buff - generally a non-permanent attribute added to a unit, affecting it directly or indirectly for a period of time in a positive manner.

Caster - type of class or monster, capable of using ranged magical spells, or spell-like abilities from a distance.
Character customization - configuring your character through choices to appearance and gender when first creating a character and developing it within the game through skills, ability selections and items worn.

Characters - collective term for both playable classes and non-player people (merchants, quest givers, townsfolk) within the game.

Class-specific Quest - quests offered to a specific class and no other class has access to them.

Drop rate - dgeneral RPG term for the chance a monster will drop a given item.

ESport - games played competitively at amateur and professional levels. Diablo III is not being developed with this in mind.

Quest - a set task to achieve a goal and be rewarded with experience, gold and/or items, not necessarily mandatory.

Reroll - starting a new character.
Respec - deleting stats that you can on your existing character to reassign points to skills, proficiencies or attributes.

Scripted Event - randomly generated small, quest-like actions when the monsters or NPCs behave in an unusual fashion that's been programmed in advance.

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