If you’re bored of Oblivion’s single player campaign and are waiting for an excuse to jump back into Tamriel, you can download some of the single-player mods over here. Keep in mind though, they aren’t free. In addition to these mods, Bethesda has announced a new mod called Mehrunes’ Razor that’ll test your skills to the max. It’ll retail at 2.99 USD and it goes something like this:
“The lost Ayleid City Varsa Baalim has been unearthed by a rogue Telvanni arch-mage, in pursuit of a fearsome Daedric Artifact, Mehrunes Razor, which he believes will give him the power he needs to topple the Imperial reign - but what horrors lie in wait beneath the Valus mountains; and can you overcome them to claim Mehrunes Razor as your own?”
If you feel, it’s worth your hard-earned money, head on over to Oblivion’s
downloadable content page.