09082017, 04:05 PM  #1 
On Notice
Join Date: Aug 2006

Dice idea for DMG fractions
Doubled shock for groin hits / low pain threshold doesn't give a way for odd numbered penalties....
So what if D6 was replaced with D12 divided by 2? Then you could get 0.5 / 1.5 and suffer 1 or 3 penalties. In the first case finally a scenario where something causes pain without being enough to lose HP. I realize this powers the average some (d12 has same max as 2d6 but avg 6.5 instead of 7) but that doesn't seem like a major hiccup. This could also cause more versatility in the crippling system. Rolling over 1/3 HP could be done with 3.5 as well as 4. Rolling a 2.5 doesn't quite exceed 1/4 of 10 HP though, so it does make extremities a bit harder to maim. 
09082017, 04:17 PM  #2 
Join Date: Mar 2008
Location: LFK

Re: Dice idea for DMG fractions
I would need to check the math to see if (eg) d12 / 2 would mess too much compared to d6  as a house rule I'm sure it's fine.
One of the standards of GURPS is using the regular six sided dice for everything though, so I don't see many other people picking it up. If you were thinking about 2d6 / 2 as a substitute for d12 / 2, unfortunately it is not equivalent. 1d12 has equal odds of rolling anything between 1 and 12, 2d6 has a bell curve between 2 and 12 (keep in mind there are 6 ways of rolling a 7 in 2d6, and only one way of rolling a 2). TLDR: For your home game, do what makes you happy. I don't see it catching on outside of there. 
09082017, 08:48 PM  #3 
Join Date: Aug 2004

Re: Dice idea for DMG fractions
I agree with Talon. Do what you want, but I see a lot of added complexity (an additional mathematical step on every damage roll) for very little gain.
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09082017, 09:46 PM  #4 
Wielder of Smart Pants
Join Date: Aug 2004
Location: Ventura CA

Re: Dice idea for DMG fractions
I would suggest actually playing GURPS first.

09082017, 10:06 PM  #5 
Join Date: Jun 2005

Re: Dice idea for DMG fractions
Why on earth is it a problem if you don't get oddnumbered penalties? This seems to be a complicated solution for a nonexistent problem.
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09082017, 10:42 PM  #6 
Join Date: Aug 2004
Location: Binghamton, NY, USA. Near the river Styx in the 5th Circle.

Re: Dice idea for DMG fractions
If you really must have odd numbered penalties here's a simpler solution: In a rare circumstance where it actually matters roll 1d6; on a 13 the penalty is reduced by 1 (so a 2 becomes 1).
Personally, I wouldn't worry about it because in practice it's extra complication for minimal gain.
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09082017, 11:28 PM  #7 
Join Date: Jun 2013

Re: Dice idea for DMG fractions
A simpler way that won't screw with probability would be, anytime something is doubled (shock, knockback, damage, etc), roll d12's in place of d6's. Use the actual rolls for assessing such effects, but for determining actual damage divide each value in half, rounding up.
Let's consider a 2d cr dkb attack to the groin. Instead of 2d6, doubled for knockback and shock (such that those are always even numbers), roll 2d12. This will give knockback/shock ranging from 2 to 24, as before, but will include odd numbers as well. For actual damage, read rolls of 1 or 2 as 1, 3 or 4 as 2, 5 or 6 as 3, 7 or 8 as 4, 9 or 10 as 5, and 11 or 12 as 6. So, a roll of 5 and 10 would be 15 for knockback and shock purposes, 8 for damage purposes.
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09092017, 01:29 AM  #8 
On Notice
Join Date: Aug 2006

Re: Dice idea for DMG fractions
I like that idea. I would probably just round down since I like the idea of damage less shock.

09092017, 06:31 PM  #9 
Join Date: Jun 2013

Re: Dice idea for DMG fractions
Allowing a penetrating d12 roll of 0 or 1 in such a case (due to modifiers or DR) to result in no damage but 1 shock will accomplish that, without reducing damage. Rounding down will mean targeting the groin, for example, will cause less damage and more shock than targeting the torso.
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