For my own needs I write fantasy. But at this time I am not sure what genre it is.
Base of that world is probably classic fantasy, because there are:
- other extremely powerful beings
But I also placed there some very modern things like (and some more I still did not used)
- fluorescent tubes
- nuclear reactors
- nuclear bombs
but they are very improved to be magic (not in definition Any sufficiently advanced technology is indistinguishable from magic1). For example local version of fluorescent tubes are emiting cold light, they have similar shape - but their construction is simplified (to use magic as source of energy).
1 - only one using of this A.C.Clarke's law is cybernetic visitor from else world; there Icefingers (healer, scientist and former soldier) will use variation of this law to explain being of that visitor.