In the German gaming magazine PC Player (issue 01/1999) Ring: The Legend of the Nibelungen received a special award for the "Noblest Atmosphere in 1998".
The whole game exists on DVD. I've seen it for sale in a lower Tower Records in Israel, where it cost around $50.
The Ring soundtrack includes excerpts from Wagners original Ring cycle by the Vienna Philharmonic Orchestra (Conducted by Sir George Solti). The entire cycle is a 14 CD set.