From Diablo Wiki
This is an overview for the Diablo III Beta, which reads very much like a promotional press release. This overview was given to the media for a press event in late July, 2011.
Diablo III Beta Overview
After 10 years of anticipation following Blizzard Entertainment’s Diablo II (2000) and its expansion, Diablo II: Lord of Destruction (2001), the iconic action-RPG gameplay of the Diablo series is back with a vengeance in Diablo III. In the upcoming Diablo III beta test, selected participants will be among the first in the world to rejoin the battle against the minions of the Burning Hells as they explore part of the game’s foreboding first act.
Stay Awhile And Listen!
Meet up with Deckard Cain in New Tristram and get up to speed on what’s been happening in Sanctuary since the events of Diablo II. Interact with the townspeople and introduce yourself to Leah to immerse yourself in the world and lore of Diablo.
Choose Your Hero Wisely
All 5 character classes will be playable in the beta test: the dual-wielding Barbarian, the fearsome Witch Doctor, the elementally adept Wizard, the dexterous Monk, and the notoriously deadly Demon Hunter. Each character brings the pain to the demons and undead of Sanctuary in unique and spectacular ways.
Who’s Afraid Of The Big Bad Skeleton King?
Evil is alive once more in the bowels of the Tristram Cathedral as the once-vanquished Skeleton King returns to plague the tiny village with gruesome horrors. The beta will pit players against this returning Diablo villain as they battle to restore peace and tranquility to New Tristam -- and to finally put the tortured soul of King Leoric to rest.
Good Company In Bad Times
Players will be able to meet and interact with some of the Artisans and Followers of Sanctuary during the beta test. These characters will aid your hero in different ways along his or her journey, providing some valuable services and much-needed martial companionship.
Something Looks Different…
Each play-through of the beta test will feel like a new experience thanks to the randomized elements of Diablo III. Randomized maps, monster distribution, scripted events, and loot all make for highly replayable gameplay.
A (Treasure) Hunting We Will Go
Finding, collecting, enhancing, and trading items has always been a core component of the Diablo series, and like its predecessors, Diablo III was designed from the ground up to make the rewards as much fun as the challenges. During the beta test, players will experience the joy of anticipation and discovery with every enemy they lay waste to, ever-searching for that amazing upgrade that will take their character to a whole new realm of power.
Make It Your Own
Each character is brimming with possibilities. Which potent combination of skills, weapons, armor, and enhancements -- including gems, charms, and runestones -- will you assemble? With countless ways to customize each hero, players will definitely get a taste of what it means to be unique in the Diablo III beta test.