Earthdawn rolls used in HERO (for fun)

[Crypt]

Just a 2 cents idea.

Have you ever try or think about using Earthdawn rolls in HERO ?

It could be fun, for instance for an explosive High Fantasy campaign (====> just for the fun of it)

 

As you may know, in Earthdawn it works this way =>

step/roll

1/1d4-2 (min: 1)

2/1d4-1 (min: 1)

3/1d4

4/1d6

5/1d8

6/1d10

7/1d12

8/2d6

9/1d8+1d6

10/1d10+1d6

11/1d10+1d8

12/2d10

........

15/1d20+1d6

.......

20/1d20+1d8+1d6

........

25/1d20+1d10+1d8+1d4

........

30/1d20+1d10+1d8+1d6+1d6

.........

35/1d20+1d12+1d10+1d10+1d8

..........

40/2d20+1d12+1d10+1d8

 

"1" on every die = pathetic result.

Maximum result on any dice = reroll this dice and add (open-ended)

For instance:

Step 18 = 1d20+1d12

d20 : 20 -> 13

d12: 12 -> 12 -> 4

Total: 61 (!)

 

The average result = the step.

Even a very high step may roll a very low result.

Even a very low step may roll a very high result.

 

 

In Hero we may directly convert Rolls- to Steps and roll versus a 10(+modifiers) target.

 

Roll 6- = Step 6 = 1d10 =====> 10 % versus 10 or better

Roll 8- = Step 8 = 2d6 =====> 30% versus 10 or better

Roll 11- = Step 11 = 1d10+1d8 =====> 56 % chance versus 10 or better (6% less than with 3d6...)

Roll 18- = Step 18 = 1d20+1d12 =======>85 % chance versus 10 or better

 

To convert OCV to Step : add +11.

Ex: OCV 3 => Step 14

OCV 0 => Step 11.

 

DCV(+10) are to be seen as straight Target Numbers (DCV work like modifiers)

Ex:

OCV 4 vs DCV 5 =====> Step 15 vs target number 15

 

 

For information:

at Step 11 (1d10+1d8) (on 1000000 rolls)

# Result ------- Proba ----------- Chance to roll equal or better

# 2 ----------- 1,2549% ----------- 100%

# 3 ----------- 2,4614% ----------- 98,7451%

# 4 ----------- 3,7117% ----------- 96,2837%

# 5 ----------- 5,0053% ----------- 92,572%

# 6 ----------- 6,2604% ----------- 87,5667%

# 7 ----------- 7,5186% ----------- 81,3063%

# 8 ----------- 8,7658% ----------- 73,7877%

# 9 ----------- 8,7847% ----------- 65,0219%

# 10 ----------- 8,8815% ----------- 56,2372%

# 11 ----------- 7,8204% ----------- 47,3557%

# 12 ----------- 6,8347% ----------- 39,5353%

# 13 ----------- 5,863% ----------- 32,7006%

# 14 ----------- 4,8956% ----------- 26,8376%

# 15 ----------- 3,8994% ----------- 21,942%

# 16 ----------- 2,9797% ----------- 18,0426%

# 17 ----------- 1,8505% ----------- 15,0629%

# 18 ----------- 1,9981% ----------- 13,2124%

# 19 ----------- 1,8671% ----------- 11,2143%

# 20 ----------- 1,7161% ----------- 9,34720000000002%

# 21 ----------- 1,4834% ----------- 7,63110000000002%

# 22 ----------- 1,2586% ----------- 6,14770000000001%

# 23 ----------- 1,0316% ----------- 4,88910000000001%

# 24 ----------- 0,7892% ----------- 3,85750000000002%

# 25 ----------- 0,5298% ----------- 3,06830000000002%

# 26 ----------- 0,4292% ----------- 2,53850000000003%

# 27 ----------- 0,3042% ----------- 2,10930000000003%

# 28 ----------- 0,3012% ----------- 1,80510000000004%

# 29 ----------- 0,2822% ----------- 1,50390000000004%

# 30 ----------- 0,2483% ----------- 1,22170000000004%

# 31 ----------- 0,2053% ----------- 0,973400000000041%

# 32 ----------- 0,1652% ----------- 0,768100000000047%

# 33 ----------- 0,1229% ----------- 0,602900000000048%

# 34 ----------- 0,0983% ----------- 0,480000000000047%

# 35 ----------- 0,0727% ----------- 0,381700000000052%

# 36 ----------- 0,0552% ----------- 0,309000000000054%

# 37 ----------- 0,0411% ----------- 0,253800000000055%

# 38 ----------- 0,0405% ----------- 0,212700000000055%

# 39 ----------- 0,0313% ----------- 0,172200000000061%

# 40 ----------- 0,0297% ----------- 0,140900000000059%

# 41 ----------- 0,0232% ----------- 0,111200000000053%

# 42 ----------- 0,0207% ----------- 0,0880000000000507%

# 43 ----------- 0,0115% ----------- 0,0673000000000457%

# 44 ----------- 0,0107% ----------- 0,0558000000000476%

# 45 ----------- 0,0073% ----------- 0,0451000000000477%

# 46 ----------- 0,0068% ----------- 0,0378000000000469%

# 47 ----------- 0,0047% ----------- 0,0310000000000485%

# 48 ----------- 0,0052% ----------- 0,0263000000000488%

# 49 ----------- 0,004% ----------- 0,0211000000000467%

# 50 ----------- 0,0028% ----------- 0,0171000000000419%

# 51 ----------- 0,0029% ----------- 0,0143000000000484%

# 52 ----------- 0,0017% ----------- 0,0114000000000516%

# 53 ----------- 0,0014% ----------- 0,009700000000052%

# 54 ----------- 0,0017% ----------- 0,00830000000004816%

# 55 ----------- 0,0012% ----------- 0,00660000000004857%

# 56 ----------- 0,0004% ----------- 0,00540000000005136%

# 57 ----------- 0,0012% ----------- 0,0050000000000523%

# 58 ----------- 0,0003% ----------- 0,00380000000005509%

# 59 ----------- 0,0006% ----------- 0,00350000000005934%

# 60 ----------- 0,0004% ----------- 0,00290000000005364%

# 61 ----------- 0,0005% ----------- 0,00250000000005457%

# 62 ----------- 0,0004% ----------- 0,00200000000005218%

# 63 ----------- 0,0005% ----------- 0,00160000000005311%

# 64 ----------- 0,0001% ----------- 0,00110000000005073%

# 66 ----------- 0,0001% ----------- 0,00100000000004741%

# 67 ----------- 0,0002% ----------- 0,000900000000044088%

# 68 ----------- 0,0001% ----------- 0,000700000000037448%

# 69 ----------- 0,0002% ----------- 0,000600000000034129%

# 70 ----------- 0,0002% ----------- 0,000400000000027489%

# 75 ----------- 0,0001% ----------- 0,00020000000002085%

# 86 ----------- 0,0001% ----------- 0,000100000000017531%