Celebrating today's launch of QuakeCon, Valve kicks off a QuakeCon Steam Sale, which will run for four days, offering daily specials. Today's one-day discount is 66% off on The Elder Scrolls IV: Oblivion Game of the Year Edition and The Elder Scrolls IV: Oblivion Game of the Year Edition Deluxe. They also launch a QuakeCon Pack, which includes every single game in the Steam catalog from both id Software and Bethesda Softworks for about a 75% savings off the cost of purchasing them individually. Thanks nin.