Then came steampunk, which is currently a top trend. It features alternate (alternative, dammit!) historical settings, usually Victorian, where electricity was never invented. Anachronistic machinery and technology that we might recognize, such as computers and robots, run on steam power.
We also have clockpunk, which uses clockwork power instead of steam. I have never read any stories in this genre but apparently they tend to be set in the Renaissance, using Leonardo da Vinci-style inventions.
Biopunk is a term I only heard of this year but should have had a handle on sooner, because apparently my Scarabaeus books fit the bill. This subgenre focuses on biotechnology, genetic engineering and the like, and the consequences of such things going Horribly Wrong.
I heard about icepunk for the first time during DABWAHA last month, when Kate Elliott's Cold Magic was up against my book (she beat me, of course). It's "steampunk on ice" according to Kate. I've ordered this book and can't wait to read it.
And now we have bugpunk, thanks to Kameron Hurley and God's War -- which I must read even though it has a kickass female (I find kickass females a bit irritating). She uses this term in her tagline and, for all I know, invented it. The technology and fuel in God's War run on alien bug power, which sounds downright cool.
So did I miss any punks? What kind of punk should sci-fi writers turn to next?