Table of Contents
Die Probabilities
This probability chart shows percentage of success when rolling these combinations. It does not report how many advantage, threat, triumph or depair might be rolled.
| Pool | |||||
|---|---|---|---|---|---|
| 33.3% | |||||
| 50.0% | 34.5% | 26.0% | 23.5% | 17.5% | |
| 56.0% | |||||
| 66.6% | 46.0% | 35.0% | 31.0% | 23.6% | |
| 75.0% | 57.0% | 49.0% | 43.5% | 36.0% | |
| 83.0% | 65.0% | 56.0% | 50.0% | ||
| 87.5% | 73.0% | 66.0% | 60.0% | ||
| 89.0% | 72.0% | 64.0% | 57.0% | ||
| 92.0% | 78.0% | 72.0% | 65.0% | ||
| 94.0% | 83.0% | 78.0% | 72.0% | ||
| 94.5% | 83.0% | 77.0% | 70.0% | ||
| 96.0% | 86.0% | 81.0% | |||
| 96.0% | 87.0% | 82.0% | |||
| 97.0% | 90.0% | 86.5% | 81.0% | 77.0% | |
| 97.0% | 89.0% | 86.0% | |||
| 98.0% | 92.0% | 89.0% | |||
| 98.0% | 92.0% | 89.0% | |||
| 99.0% | 94.0% | 91.0% | 86.0% | 82.0% |
A full probability chart can be found here: idoc.pub_star-wars-edge-of-the-empire-dice-roll-probability.pdf
Advantage, Threat, Triumph & Despair Probabilities
For each pool it shows the average number of results you may get. The first number is when the overall result is a success and the second number is when the overall result is a failure.
For example, when rolling a single boost die you have an average chance of getting 0.5 advantage results when the overall result is a success and 0.7 advantage results when the overall result is a failure. This shows that a boost die gives more advantage when failing and less advantage when succeeding.
| Pool | Success % | ||||
|---|---|---|---|---|---|
| 33% | 0.5 / 0.7 | 0.0 / 0.0 | 0.0 / 0.0 | 0.0 / 0.0 | |
| 50% | 0.3 / 1.0 | 0.0 / 0.0 | 0.0 / 0.0 | 0.0 / 0.0 | |
| 67% | 0.4 / 1.3 | 0.0 / 0.0 | 0.1 / 0.0 | 0.0 / 0.0 | |
| 34% | 0.0 / 0.4 | 0.8 / 0.2 | 0.0 / 0.0 | 0.0 / 0.0 | |
| 44% | 0.1 / 0.6 | 1.1 / 0.3 | 0.0 / 0.0 | 0.0 / 0.0 | |
| 50% | 0.2 / 0.7 | 1.0 / 0.3 | 0.1 / 0.1 | 0.0 / 0.0 |
Notes on Probability Trends
- Larger Equal Pools = More Success
- Equal pools trend towards favoring success when the pools are larger.
- Example: = 34.0% while = 50.5%
From http://maxmahem.net/wp/star-wars-edge-of-the-empire-die-probabilities/ here is a chart on upgrading pools:
| Modification | Increased Average Success | Increased Average Advantage |
|---|---|---|
| Add | +0.33 | +0.66 |
| Add | -0.33 | -0.33 |
| Add | +0.625 | +0.625 |
| Add | -0.625 | -0.75 |
| Add | +0.83 | +0.6 |
| Add | -0.75 | -0.6 |
| Upgrade to | +0.2083 | +0.0416 |
| Upgrade to | +0.25 | +0.083 |
Also from the same website comes the following summaries and formulas:
Upgrading to :
- Has only minimal increases to the success rate (20.83% per die).
- It has an insignificant increase to receiving more (20.83% maximum).
- Adds the ability of rolling (42% chance maximum).
Upgrading to :
- Has a better chance for increased failure than the 'good' die (25% per die).
- Actually decreases odds of rolling threat! (41.66% maximum).
- Same as Triumphs above.
Average Success Rate Formula
(0.33B + 0.625A + 0.83P) - (0.33S + 0.50D + 0.75C)
Average Advantage Rate Formula
(0.66B + 0.625A + 0.66P) - (0.33S + 0.75D + 0.66C)
