- Roll 2d6 + the skill level + most relevant attribute modifier and equal or exceed the check’s difficulty.
- The easiest checks are difficulty 6, most are 8+, the most difficult are 12+
- Without even level-0 skill, take a -1 penalty if the skill can be attempted at all by the totally untrained.
- Bad or good circumstances or tools can apply up to a -2 to +2 penalty or bonus to the roll.
- Allies can aid with their own skill use at the same difficulty, granting a +1 bonus if any helper succeeds.