I've been thinking about this, and while there's certainly no hard and fast rules about mixing Fantasy and Sci-Fi, I can't think of or find any specific examples. What I mean by this is a story set in the future, including the technologies you might expect, as well as at least a rudimentary magic system. Does anyone know an example of this? Do you think it could work out well and be interesting (I certainly do), or do you think it would be destined to flop? Edit: I guess Star Wars would kind of be an example of this, but the "magic" isn't really presented as such. I was thinking of something a little more explicit.