A long time ago, in a blog post, Vincent Baker wrote about mechanics which are driven by the game fiction, and mechanics which aren’t. He used some fancy diagrams to make the point, but I think it’s not much more complicated than that. His point (or at least a point that he made) was that if your mechanics aren’t, on some level, driven by the fiction, then you end up ignoring the fiction.
Why is this? I think it’s reasonably straightforward. If the game’s mechanics can manage quite well without the fiction, the fiction becomes an inconvenience. You can’t have your hit roll until you’ve described your attack. You can’t have your damage roll until you’ve described some gore. The description makes no difference to anything, and you may well not be that interested in detailed descriptions of combat. You want to skip to the stuff that actually matters, the hit roll and the damage roll. And so, with the best will in the world, it becomes tempting to skip over, you know, the actual roleplaying. And as your descriptions become more perfunctory, they seem ever more unnecessary, the colour drains from your combat (or investigation, or whatever mechanic it might be) in favour of lifeless dice rolling.
(Incidentally, I’m not talking about mechanics that model the fiction. Nice probability curves and mechanics broken down in a way that maps onto the fictional “reality” are not relevant here. I’m not against them. But what I’m talking about is mechanics that engage because of circumstances somebody narrated, and which are sensitive to the detail of that narration.)
Once I’d seen the phenomenon Baker describes, I could not unsee it. Everywhere I looked were designs which violated the “fiction first” principle, where a conscious effort is required to keep describing, at least when the game’s mechanics are engaged. And, conversely, many an hour of dull die-rolling seemed explicable, even inevitable, given the rules of the games I had been playing.
To bring this back to the title, many roleplayers would prefer that the rules just “get out of the way”. And I think Baker’s analysis is highly relevant to understanding why. When your mechanics suck the colour out of your roleplaying in this way, every time you find yourself in a mechanics-free scene, everything will seem that much more vibrant. You have no choice but to describe, because the mechanics aren’t there to pick things up; and the fiction no longer seems a burden, because it isn’t getting in the way of your resolution system. In the absence of those mechanics, that resolution system will probably be GM fiat or collective agreement, probably based on what is plausible in the fiction, making description key.
Don’t get me wrong, I’m not saying the entirety of mechanics-averse play is down to a lack of “fiction first” in the rules. A significant amount of it is down to clunky, cumbersome mechanics, cognitive load and tedious book-keeping, for example. But it is certainly a part of it. When the fictional situation drives the mechanics, when fictional logic is put at the centre of the rules, this problem falls away. And so, whenever I design a mechanic, I always look at it through this prism, watchful for anything that might tear the players away from the fiction.