The Starter Edition will provide a limited introduction to the game with similar content to the game's private beta, which had previously leaked the Starter Edition's existence.
Players will be able to select any of the game's five classes and complete Act 1 up to the Skeleton King boss encounter.
There will be a level cap set at level 13, and users will not be able to participate in multiplayer with others playing the full game, instead limited to matchmaking with other Starter Edition players.
Users will also not be able to access real money auction houses in the Starter Edition.
For the first 30 days after Diablo 3's release the Starter Edition will only be available through a guest pass code. Guest passes will be included with the full version of the game to be handed out to friends.
After 30 days have passed, on June 14, the Starter Edition will unlock and become available to all users.
Users will have the option to upgrade from the Starter Edition to the full game through the account settings in their personal Battle.net account.
Watch the opening cinematic for Diablo 3 below:
To mark the release of the long-awaited sequel, Blizzard has announced that it will hold a series of global events to celebrate its launch.
A Collector's Edition of the game will be available at retail, which includes the game's soundtrack, a two-disc behind-the-scenes DVD and Blu-ray set, an art book and a 4GB USB soulstone flash drive loaded with the full games of Diablo 2 and its expansion Lord of Destruction.
Blizzard is also offering Diablo 3 free to users who sign up for the World of Warcraft annual pass, a yearly subscription to the popular MMO.
Diablo 3 will unlock tonight at 11pm for all users, when you can read our live first-hand impressions of the game's first few hours.
Watch the Diablo 3 launch trailer below: