Original D&D Discussion - Rolling dCarcosa

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May 19, 2013, 4:44pm

Original D&D Discussion :: Community :: Carcosa :: Rolling dCarcosa

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Topic: Rolling dCarcosa (Read 485 times)

waysoftheearth
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Rolling dCarcosa
« Thread Started on Aug 22, 2012, 5:22am »

Carcosa has a unique method for rolling hit points and damage that produces numbers between 1 and 12 -- weighted toward the lower results.

In fact, the Carcosa method yields 5 chances in 40 of a 1, 2, 3 or 4, 4 chances in 40 of a 5 or a 6, 3 chances in 40 of a 7 or an 8, 2 chances in 40 of a 9 or a 10, and 1 chance in 40 of either an 11 or a 12.

It's fun and it's variable, but it can be a bit awkward at times to rolling six dice to get one number, especially if you have to do so repeatedly.

It would be ideal to put the possible outcomes on a single forty-sided die and be done with it, but it isn't easy to find a genuine d40.

d20s, however, are positively commonplace. So, you can set yourself up with a few "dCarcosa"s by writing the numbers 1-12 on a few of your spare twenty-siders, as follows:

d20	dCarcosa
1	1
2	1
3	1
4	2
5	2
6	2
7	3
8	3
9	4
10	4
11	5
12	5
13	6
14	6
15	7
16	7
17	8
18	9
19	10
20	12

The twenty-sider odds are not quite exactly the same as the forty sider would be, but they pretty darn close... and you can get yourself a result with a single throw.

Enjoy

« Last Edit: Aug 22, 2012, 5:23am by waysoftheearth »

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crusssdaddy
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Re: Rolling dCarcosa
« Reply #1 on Aug 22, 2012, 10:57am »

"11" is missing? Or is that part of the math?

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A blog: http://thedoomedworldcarcosa.wordpress.com/

Ynas Midgard
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Re: Rolling dCarcosa
« Reply #2 on Aug 22, 2012, 11:33am »

Aug 22, 2012, 5:22am, waysoftheearth wrote:

1 chance in 40 of either an 11 or a 12.

There is 2.5% chance of a 11 and 2.5% of a 12; the 5% of a 12 given in the table is a fair approximation.

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shanes
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Re: Rolling dCarcosa
« Reply #3 on Aug 25, 2012, 10:50am »

Actually, it is a 1.6% chance of 11 and the same for a 12 (1/5 * 1/12)

I believe the odds come out to this:
1 14.50
2 14.50
3 14.50
4 14.50
5 9.50
6 9.50
7 6.17
8 6.17
9 3.67
10 3.67
11 1.67
12 1.67

A d62 gets pretty close.

« Last Edit: Aug 25, 2012, 10:54am by shanes »

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Aplus
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Re: Rolling dCarcosa
« Reply #4 on Aug 30, 2012, 4:17pm »

I really dig the dice mechanic. I use a slightly modified version of it in my games for the damage of energy weapons in a state of decay (thus making them unpredictable).

d20: which die to read
1-2: d4
3-4: d6
5-6: d8
7-8: d10
9-10: d12
11-12: 2x d4
13-14: 2x d6
15-16: 2x d8
17-18: 2x d10
19-20: 2x d12

Probably off-topic, but there you have it!

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funkaoshi
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Re: Rolling dCarcosa
« Reply #5 on Nov 5, 2012, 3:17pm »

I actually finally got to play using the "roll all the dice" mechanic on the weekend, and it's actually strangely satisfying rolling everything. I think the actual numbers are less interesting than the fact you're rolling a ton of dice.

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kesher
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Rolling dCarcosa
« Reply #6 on Nov 6, 2012, 9:33am via the ProBoards Mobile App »

Ditto that.

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vito
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Re: Rolling dCarcosa
« Reply #7 on Nov 6, 2012, 11:14am »

I love the dice mechanic myself, but my players don't. They just want to role the hit dice for their classes once and be done with it, and they love consulting tables for variable weapon damage.
I'm so sad.

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Cameron DuBeers
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Re: Rolling dCarcosa
« Reply #8 on Nov 6, 2012, 11:45am »

I ran an adventure in Carcosa for players somewhat newish to ODD style play. They were a bit hesitant at first but they really bought into it after a while.

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funkaoshi
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Re: Rolling dCarcosa
« Reply #9 on Feb 23, 2013, 12:02pm »

I don't remember if I linked to this somewhere else or not, but here is a web page that rolls a dCarcosa.

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crusssdaddy
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Re: Rolling dCarcosa
« Reply #10 on Feb 23, 2013, 12:37pm »

Feb 23, 2013, 12:02pm, funkaoshi wrote:

I don't remember if I linked to this somewhere else or not, but here is a web page that rolls a dCarcosa.

That's nice to have handy.

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A blog: http://thedoomedworldcarcosa.wordpress.com/

mushgnome
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Re: Rolling dCarcosa
« Reply #11 on Feb 23, 2013, 12:46pm »

+1, very handy!

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