It's an Elder Scrolls bonanza!

Bethesda's newest fantasy role-playing game The Elder Scrolls V: Skyrim is doing pretty well in the sales charts. The game sold 3.5 million copies during the first two days on physical and digital shelves. The game is expected to earn more than $450 million in worldwide sales on the PC, Xbox 360 and PlayStation 3.

The company sold 50 percent of the 7 million copies it shipped and retailers are said to be reordering the game in large quantities. The game is also one of the best-selling games on the digital distribution site, Steam. The service has reported more than 280,000 concurrent users were playing the game. That beats out the nearest competitor Call of Duty: Modern Warfare 3 by about 200,000 players, according to GamePro.

We are grateful for the fans' response to Skyrim, Robert Altman, chairman and CEO at ZeniMax, said. Todd Howard? and his team at Bethesda Game Studios have crafted a very special game. Anticipation for Skyrim has surpassed any game in our company's history, and we are pleased that sales and reviews have reflected the quality and hours of amazing gameplay it provides.

In other news, Skyrim's predecessor, The Elder Scrolls IV: Oblivion, gets a 75 percent off discount on the Steam store. So if you don't want to put up the $60 to get Skyrim you can still get in on the open-world RPG fun for just $4.99. You can get the Game of the Year Edition which includes Knights of the Nine and the Shivering Isles expansions. Or for $6.24 you can download the deluxe edition with the those two expansions along with Fighter's Stronghold, Spell Tome Treasures, Vile Lair, Mehrune's Razor, the Thieves' Den, the Wizard's Tower, the Orrery, and the Horse Armor pack. It's quite a deal since Oblivion usually sells for $20 or $25 (for the deluxe versions).  But the sale only lasts until 4 p.m. on Nov. 17.

No matter what you decide to buy you'll be pretty busy for months to come. If you are wondering whether you should buy Skyrim, check out our review