As of May 10, Blizzard Entertainment’s highly-anticipated Diablo III for PC became the most pre-ordered PC game of all time at Amazon, beating out StarCraft II and World of Warcraft: Cataclysm (both also by Blizzard).

The game will be released on Tuesday, May 15, 2012, so you can still pre-order your copy now.

If you’re one of those people who dig getting those accompanying video game guides, Diablo III will also have the Diablo III Signature Series Guide, currently discounted to $13.74 (discounted from $21.99). The guide will also be released on May 15, 2012. Already available is Diablo III: Book of Cain (discounted to $21 from $35), which is Deckard Cain’s journal that serves as a compendium of the Diablo universe that contains exclusive art from artists Brom, Mark Gibbons, Jim Gurney, and more.

If you’re a completest, check out some more Diablo Gaming Products, like a gaming mouse, headset, and more.

From the Diablo III: Standard Edition product page:

• Five new character classes, including the otherworldly Witch Doctor, or with re-imagined warriors from Diablo’s past, like the powerful Barbarian.
• Experience a new approach to in-game health as the previous reliance on mana and potions is appended by resource types unique to each class, as well as health globes.
• In single player quests utilize up to three AI followers, from three different classes who can be equipped with basic items and leveled up.
• Sell unique items found within the game for in-game gold or real money via online Auction House functionality.
• The new Rune System in which skills and abilities are now automatically unlocked as you level.
• 1-on-1′ dueling system coming into play.
• The Barbarians will have a variety of revamped skills at their disposal based on the use of their incredible physical prowess.
• The Witch Doctor is a new character reminiscent of the Diablo II Necromancer.

Diablo III is a fantasy Action Role-Playing Game (RPG). Only the third major release in what is considered by many gamers as the most iconic RPG franchise of all time, Diablo 3 continues the land of Sanctuary’s battle against a reoccurring demonic evil, and provides players around the world with the opportunity to create the ultimate hero to quest against it with friends online, or on their own. Features include: classic dungeon crawling gameplay, a new batch of character classes, multiplayer options with friends and single player support with the help of AI companions, a new take on character skill assignment and health, online item auctioning, and compatibility with Windows and Mac operating systems.