Skill Checks

Dialogue options labeled [Persuasion], [Intimidation], [Insight], and similar trigger a d20 roll. The total is d20 + stat modifier + proficiency bonus (if trained), compared against a Difficulty Class from 5 (Trivial) to 30 (Nearly Impossible). A natural 20 on the kept die is an automatic pass; a natural 1 is an automatic fail.

Stat modifier is the relevant ability score divided by three, rounded down (range +0 to +10). Proficiency bonus is +2 at level 1 and scales to +6 at level 33+. Some checks have an authored DC; checks without one roll a tier procedurally based on the NPC’s zone level. Skill checks are always optional response choices, and declining one carries no disposition penalty.