Some checks are made against a Difficulty Class (DC). The DC is a number (set using the skill rules as a guideline) that you must score as a result on your skill check in order to succeed.
| Difficulty (DC) | Example (Skill Used) |
|---|
| Very easy (0) | Notice something large in plain sight (Spot) |
| Easy (5) | Climb a knotted rope (Climb) |
| Average (10) | Hear an approaching guard (Listen) |
| Tough (15) | Rig a wagon wheel to fall off (Disable Device) |
| Challenging (20) | Swim in stormy water (Swim) |
| Formidable (25) | Open an average lock (Open Lock) |
| Heroic (30) | Leap across a 30-foot chasm (Jump) |
| Nearly impossible (40) | Track a squad of orcs across hard ground after 24 hours of rainfall (Survival) |
