Monday, April 17, 2017

GURPS Skill modifiers

There are a lot of modifiers that can be applied to skill rolls.  This article tries to list the location of most of them. Remember to check skill entries as well for they often have specific modifiers.  Once you have used them a few times it is pretty easy to eyeball them during a game and come rather close if you dont want to take the time to look them up.

General skill modifiers


  • Climbing (p. B349)
  • Culture (p. B23) Social skills.
  • Different Gravity (p. B350)
  • Equipment Modifiers (p. B345)
  • Familiarity Penalties (p. B169)
  • Geographical and Temporal Scope (p. B176)
  • Influence Rolls (p. B359)
  • Language (p. B23)
  • Long Tasks (p. B346)
  • Physiology Modifiers (p. B181) All medical skills
  • Planet Types (p. B180) For Biology, Geography (Physical), Geology, Meteorology.
  • Sense Rolls (p. B358)
  • Success Rolls (p. B347)
  • Swimming (p. B354)
  • Tech-Level Modifiers (p. B168)
  • Task Difficulty Modifiers (p. B345)
  • Time Spent (p. B346)
  • Will Rolls and Fright Checks (p. B360-361)


Skill Contests

  • Quick Contests (p. B348) Rules for a fast competition between opposing people.
  • Regular Contests (p. B349) More involved competition.

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