The Oblivion total conversion mod Nehrim: At Fate's Edge will get a Steam release in June:
More information.Nehrim: At Fate's Edge
Nehrim: At Fate's Edge is a total conversion mod for TES IV: Oblivion. Explore the namegiving land of Nehrim with dense forests and deserts, delve into old crypts and caves, and experience an unusual, multi-layered storyline that takes place beyond known patterns of good and evil.