Space Opera Rec with Magic and Adventure?

I discovered the book A Game of Universe by Eric Nylund about ten years ago when it came out, and I've read it several times since then. It's a fast-paced, exciting fantasy/adventure/space opera type of a novel, with a grail quest and a psychologically complex protagonist. Anyway...are there any other books like this out there? It stands out for me as a one-of-a-kind story, but I'd love to read something else in a similar style. None of Eric Nylund's other novels seem quite the same...