Ability Scores

From OSE SRD

A character’s score in each ability determines whether they have any bonuses or penalties associated with various actions in the game. The tables below list the modifiers associated with each ability score, with the effects described below.


Strength (STR)

Brawn, muscle, and physical power.

  • Melee: Is applied to attack and damage rolls with melee weapons.
  • Open doors: The chance of success with attempts to force open a stuck door (see Dungeon Adventuring).

Strength Modifiers

STR Melee Open Doors
3 –3 1-in-6
4–5 –2 1-in-6
6–8 –1 1-in-6
9–12 None 2-in-6
13–15 +1 3-in-6
16–17 +2 4-in-6
18 +3 5-in-6

Intelligence (INT)

Learning, memory, and reasoning.

  • Spoken languages: Denotes the number of languages the character can speak.
  • Literacy: Indicates the character’s ability to read and write their native languages.

Intelligence Modifiers

INT Spoken Languages Literacy
3 Native (broken speech) Illiterate
4–5 Native Illiterate
6–8 Native Basic
9–12 Native Literate
13–15 Native + 1 additional Literate
16–17 Native + 2 additional Literate
18 Native + 3 additional Literate


Wisdom (WIS)

Willpower, common sense, perception, and intuition.

  • Magic saves: Is applied to saving throws (see Saving Throws) versus magical effects. This does not normally include saves against breath attacks, but may apply to any other saving throw category.

Wisdom Modifiers

WIS Magic Saves
3 –3
4–5 –2
6–8 –1
9–12 None
13–15 +1
16–17 +2
18 +3

Dexterity (DEX)

Agility, reflexes, speed, and balance.

  • AC: Modifies the character’s AC (a bonus lowers AC, a penalty raises it).
  • Missile: Applied to attack rolls (but not damage rolls) with ranged weapons.
  • Initiative: Modifies the character’s initiative roll, if the optional rule for individual initiative is used (see Combat).

Dexterity Modifiers

DEX AC Missile Initiative
3 –3 –3 –2
4–5 –2 –2 –1
6–8 –1 –1 –1
9–12 None None None
13–15 +1 +1 +1
16–17 +2 +2 +1
18 +3 +3 +2

Constitution (CON)

Health, stamina, and endurance.

  • Hit points: Applies when rolling a character’s hit points (i.e. at 1st level and every time a level is gained thereafter). A character always gains at least 1 hit point per Hit Die, regardless of CON modifier.

Constitution Modifiers

CON Hit Points
3 –3
4–5 –2
6–8 –1
9–12 None
13–15 +1
16–17 +2
18 +3

Charisma (CHA)

Force of personality, persuasiveness, personal magnetism, physical attractiveness, and ability to lead.

  • NPC reactions: Applies when hiring retainers and when interacting with monsters.
  • Max # of retainers: Determines the number of retainers a character may have at any one time.
  • Retainer loyalty: Determines retainers’ loyalty to the character.

Charisma Modifiers

Retainers
CHA NPC Reactions Max # Loyalty
3 –2 1 4
4–5 –1 2 5
6–8 –1 3 6
9–12 None 4 7
13–15 +1 5 8
16–17 +1 6 9
18 +2 7 10


Prime Requisite

Each character class has one or more prime requisites—ability scores of special importance to that class’ function. A character’s score in their prime requisites affects how quickly the character gains experience points.

Characters with a single prime requisite use the table below. The modifiers for classes with multiple prime requisites are noted in the class description.

  • XP modifier: Is applied to all experience points awarded to the character, unless otherwise noted in the description of the class.

Prime Requisite Modifiers

Prime Requisite XP Modifier
3–5 –20%
6–8 –10%
9–12 None
13–15 +5%
16–18 +10%