Sometimes I want to inflict rust damage rules on wearers of steel weapons and armor. I don't know what drives me. It's madness.
Lava-filled caverns? Full of toxic chemicals. I've got your skill challenge right here... it's called antimony poisoning!
Flashing Blades includes rules for sword-breakage; if you parry there's a chance of your character's sword breaking. Smallswords are more likely to break than rapiers, which are more likely to break than longswords and sabres, which are more likely to break than hangers, which are more likely to break than zweihänders.Anyone ever found some equipment durability rules they actually like?
Realistic rules for using modern firearms and bullet proof vests.
Using a semi automatic weapon you could fire a clip in a few seconds. A higher caliber weapon like a .45 would give you recoil which would modify your attacks, but a lower caliber pistol like a .22 wouldn't, however it wouldn't do as much damage, however .22 bullets have a tendancy to ricochet off bones within the body producing a kind of "magic bullet" effect. And when you shoot a person how do you determine if it hits the bullet proof vest, and if it does does it hit the armor plate or just the reinforced material, and how do you represent that it turns the lethal bullet damage into something more akin to a jump kick to the chest?
Now figure up how burst fire and automatic spray fire work. Now use those rules in a fast moving game without clawing one's eyes out... now have fun.
I dunno pretty much any rule that tries to adhere as closely as possible to things that we take for granted in the real world. Some examples being...
-Getting hungry and the inevitable results there of...
-crawling around sewers (honestly think about it)
-injury and healing and infections
-mental trauma associated with being a mass murderer
-weapon and armor degradation
-having armor not being made to tailor fit the individual
...pretty much the game works as long as the rules try to get the gist of things without being caught up in details too much.
I remember years ago playing homebrews with my friends and he had set it up so that a weapons length, weight, material and any other factor you could think of all had some effect on combat and though fairly realistic it was an absolute nightmare when every weapon you owned had its own character sheet let alone trying to actually roll something for combat. Needless to say I gave up about half way through the first combat.