Are based on a percentage of chance using the following formula.
10 times characters tier level.
Plus, roll a d20.
Plus, roll characters tier die.
Plus characters skill level, (both trained and temporary).
This gives an absolute minimum of 12% = (10+1+1+0) for tier 1.
Also gives an absolute maximum of 102% = (50+20+12+20) for tier 5.
If two players are competing, whoever gets the highest number wins!
The GM (Guide Manager) or competing foe rolls a d100.
If the players’ number is higher, they win!
The players’ number can still be used as a variable to different levels of task success depending on the circumstances.
| Task Difficulty (DC) | Tier 1 | Tier 2 | Tier 3 | Tier 4 | Tier 5 |
| Very easy | 20% | 30% | 40% | 50% | 60% |
| Easy | 25% | 36% | 46% | 58% | 67% |
| Medium | 33% | 44% | 55% | 66% | 77% |
| Hard | 37% | 48% | 59% | 70% | 82% |
| Very hard | 42% | 55% | 67% | 79% | 91% |
| Nearly impossible | 47% | 59% | 71% | 83% | 95% |
Note: Nearly impossible is based on max rolls with 13 points of skill. This may be too low.
Guide Manager’s Note: Relevant Skills from other like skills can be used together if their totals do not exceed 10 points for either the trained or temporary amounts.