I was reading a news article this morning about a guy who shot a lawn mower with its gas tank filled to the brim with three pounds of explosive material. He lost a leg.
Is there any interest in a series of charts to determine which part of the body a critical hit affects and how traumatic the injury is? I have a lot of experience with the Critical Hit and Critical Fumble decks produced by Paizo, but those only distinguish between the various kinds of weapons used. I am also thinking of drawing inspiration from the Called Shot optional rules in the Pathfinder sourcebook, [i]Ultimate Combat[/i], although I don't know how much of that stuff I would incorporate into this endeavor (maybe successfully executing a called shot would give the person who landed the crit some wiggle room in selecting his or her own result from the relevant chart).
Ultimately, this increases the randomness of crits, and a similar system for adjudicating what happens when you "botch" with a natural 1 would do the same. This inevitably affects PCs more than NPCs and monsters because the DM doesn't care how badly no-name orcs and goblins get mangled in a fight. There will always be more orcs and goblins. But the party's dwarven cleric only has two eyes, two years, etc. It would also necessarily mean breathing new life into the presently very sparse selection of [i]rejuvenation[/i]-related magic and other forms of healing. That, or a more robust market for magic and pseudo-magic options for prosthetics.