Spawned out of the classic gaming comic Knights of the Dinner Table (which I haven't read, though I probably should) and eventually, largely on account of fan pestering, ripping itself out of its forebear to be its own thing, Hackmaster is conceived as something of a parody of Advanced Dungeons & Dragons: it takes all the crazy and overcomplicated things of the system, lays them down on the table, and smashes your face in it. It chips away the nostalgia and forces one to bear witness to the ugly truth. How could anyone have figured this stuff out back in the day? And nowadays, with so many better-designed games - a bunch of retroclones among them - why would anyone want to?
Or that's what it seeks to do, anyway. I don't think it quite pulled it off.
It doesn't go far enough with the concept... and when it does go the distance, it goes a bit the wrong way. It mostly just adds a bunch of new subsystems and tables and fireball variants and Honor, while leaving what's already there more or less intact - just with an immensely more mean-spirited writer, one that insists at every opportunity that you must use everything as it is, no houseruling allowed, or you're a wimp and a loser and not playing the game as it's meant to play. It's really unsubtle about it, and not very funny. I'd have liked it to - expected it to - shake things up a little more, actually rip apart the rules themselves, exaggerate them, make them weird... but instead, all too often, the punchline is just "Look! It's AD&D! Isn't that weird?"
I think its mistake is that even while it's doing its parody schtick, it tries to present a functioning system that could actually be played in real life, not just in a weird fantasy comic where things (presumably) get really crazy from time to time. This hurts the parody and shackles it from going all the way with the jokes and the fun and the nostalgia-breaking. Yet also, all of the added rules and complications really do not make it seem like anything I'd like to play, either: around an actual table, all the parody stuff would just frustrate us. So it's torn apart between these two approaches and falls into a middleground that can't pull off either.
Still, it did open my eyes to some extent: of course I always knew just what a weird mash-up of a system AD&D was, but this book could clarify them better and put them into words in a way I couldn't, as well as point out some details I'd never really thought of at all. I was halfway on my way away from the system and towards Basic and its derivatives already, and this planted a pretty big stepping-stone on that road, right under my feet. And wedged between all those tables and abuse and mockery, there were a couple decent laughs. And the art was always nice.
We'll make it two and a half stars. I liked parts of it, even though on the whole it left me lukewarm.