Aristoi, though awesome, wasn’t cyberpunk at all. Hardwired and Voice of the Whirlwind, on the other hand . . .
Lets check with the experts. According to R. Talsorian’s Cyberpunk 2020 RPG, the true judge of all things cyberpunk, the cyberpunk bibliography consists of:
William Gibson: Neuromancer, Count Zero, Mona Lisa Overdrive, Burning Chrome (Big shock he’s here, I know)
Norman Spinrad: Little Heroes (Never managed to find this one)
John G. Batancourt: Johnny Zed (I remember reading this, but can not remember a single detail about it. Not a good sign)
Joan D. Vinge: Psion, Catspaw (These were good. The latter more so than the former)
Mick Farren: Vickers (Don’t remember this one either. Don’t think I read it)
Walter Jon Williams: Hardwired, Voice of the Whirlwind,* Angel Station* (Staggeringly awesome. Actually, I’ve found pretty much everything he’s ever read awesome, including his short stories. Except that one ‘alternate past’ short story where Lord Byron gets his leg shot off, inspiring Shelly to write a different Frankenstein)
Bruce Sterling: The Artificial Kid, Mirrorshades: the Cyberpunk Anthology, Islands in the Net (Good, not amazing)
John Brunner: Shockwave Rider (Never found)
George Alec Effinger: When Gravity Fails,* A Fire in the Sun * (As mentioned by others, awesome. The third one hadn’t been written yet. Effinger also wrote a Zork novelization, which was also awesome)
Steve Barnes: Streetlethal, Gorgan Child (Haven’t read these, but they sound awful)
John Shirley: Eclipse, Eclipse Penumbra (Think I read them, or one of them. Can’t remember, don’t care)
Rudy Rucker: Software, Wetware (No.)
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Walter Jon Williams actually wrote the Hardwired expansion to CP2020 himself. Sadly, his writeups of his own characters all have super-humanly high stats. It had better drug rules than the ‘don’t do drugs’ main book. I’m still kicking myself for not having bought the super-rare When Gravity Fails expansion, which would, in addition to setting info, presumably have better bio-sculpting rules.