Like some kind of sneaky Dunmer, Skyrim’s Dawnguard expansion showed up on Steam this afternoon acting like nothing out of the ordinary had happened. The release coincides with Bethesda’s presence at QuakeCon, which began today in Dallas. Skyrim is also currently on sale for $30, and with Dawnguard priced at $20, you can get them both for less than the normal price of Skyrim by itself. The forests of Riften will be filled with howls this night…​