Activities
All activities in the game involve skill rolls. Skill rolls are usually compared to a difficulty value, which is determined with a variety of methods discussed here. If a skill roll meets or exceeds the difficulty value, the activity is considered successful.
Difficulty Class
An activity's DC represents the base difficulty of that activity. Many low-level activities have a DC of 5, making it very easy to succeed in that activity. The DC is not the final difficulty of an activity; instead, it serves as a starting point for the difficulty. Some activities may only use the DC as the total difficulty, but many activities involve additional difficulty factors.
Difficulty Modifiers
Some activities have modifiers added to that activity's DC that modify the difficulty of that activity. For example, running a blockade in a starship has a base DC of 25, but there is a modifier between -5/+5
added to this base DC representing how many ships are in the blockade.
Skill Pool
On the character side of an activity is the Skill Pool. The Skill Pool represents a character's maximum possible roll for success, and this changes for each character based on the activity. For example, the Breaking and Entering mission will involve a character's Dexterity attribute and Security skill. The Breaking and Entering Skill Pool is represented by a D20 roll (for the Skill Pool, this is represented by the real value 20
) plus that character's Dexterity modifier plus that character's Security skill
If the character's Skill Pool for an activity is less than that activity's total difficulty (DC + Modifiers) then the character cannot possibly succeed at that activity.
Skill Roll
On the character side of an activity is the Skill Roll. The Skill Roll represents the character's attempt to complete an activity.