An AEG-style dice rolling and odds calculator

This is a simple command-line tool for

• simulating die rolls in AEG's roll-and-keep system, including variant rolls representing skills with mastery or emphasis, and

• calculating the odds of success for any of those rolls.

Usage

Running the script shows a prompt, (roll), after which you can type a roll in AEG's standard notation:

(roll) 7k5

  36: 10 + 1, 7, 7, 6, 5 <<<>>> 4, 4

This shows that seven dice were rolled, one "exploded," and the total of the highest five was 36. If you're curious about the odds of hitting various TN values, use prob:

(roll) prob 7k5

  TN:  15   20   25   30   35   40   45   50   55   60   65   70   75   80  
   %: 100%  99%  93%  79%  59%  39%  24%  13%  7%   4%   2%   1%   0%   0%

You can simulate variant rules, e.g. rolls of skills with an applicable emphasis, by changing the notation slightly:

(roll) 7k5e

  46: 1 -> 10 + 8, 9, 8, 6, 5 <<<>>> 3, 1 -> 1

This shows that, of seven dice rolled, two came up with ones, and each was rerolled once. You can also see the odds for variant rolls:

(roll) prob 7k5e

  TN:  20   25   30   35   40   45   50   55   60   65   70   75   80   85  
   %: 100%  97%  87%  68%  46%  29%  17%  9%   5%   2%   1%   1%   0%   0% 

Type help or help advanced at the prompt for a description of all options.