Blizzard Entertainment has announced that Diablo III beta will be open to the Public for a three day stress test. Anyone who have a vaild battle.net account should be able to play this game all weekend.
From Friday, April 20 at 12:01 p.m. PDT (noon), until Monday, April 23 at 10:00 a.m. PDT you’ll be able to log in, team up with friends, and play each of the five heroic classes to level 13 as you fight to save the world from the impending demonic invasion.
Diablo III is horror themed action role-playing game which is preplaned to launch on May 15, 2012

How to Play Diablo III this Weekend:-
Step 1:- To play Diablo III you need a valid battle.net account. If you already then switch to second step another go to battle.net and then create a free battle account.
Step 2:- Now Download the Diablo III Game Client from here and install it.
Step 3:- Now Create your Battle Tag and then log in to the game using your Battle.net account name (email address) and password to begin slaughtering the demonic hellspawn that dare stand in your way.

