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1/2D or ½D is a property of ranged attacks.

  • B35 lists it for Affliction (advantage), where targets beyond it get a bonus to save
  • B40 mentions it for Binding
  • B61 mentions it for Innate Attack
  • B72 mentions it for Obscure with a Ranged enhancement
  • B92 mentions it for Telekinesis throwing
  • B106 mentions it for Guided / Homing where it determines speed
  • B106 mentions Increased Range increases both it and Max, and that it is half cost to just increase 1
  • B106 also mentions it for Jet and Link and Malediction:
    • Jet's is 5
    • 1/2D must be identical to have a single attack roll for Link
    • Malediction lacks 1/2D
  • B107 mentions under Ranged
  • B112 mentions under Melee Attack and Emanation:
    • Melee attack explicitly lacks it
    • Emanation has "no range" and presumably also lacks it
  • B115 mentions that Reduced Range can reduce 1/2D at half cost, but cannot decrease Max independently
  • B244 mentions for Lightning

Campaigns[]

B378 "Half Damage (1/2D) for Ranged Weapons" mentions:

"The damage of an attack modified with Follow-Up (p. 105) is never halved"
  • The damage of an attack modified with Follow-Up (p. 105) is never halved, either – although its “carrier” attack is subject to 1/2D effects as usual.
Finally, if an attack has a 1/2D range but requires a resistance roll to avoid an affliction of some sort, add +3 to the resistance roll instead of halving damage (if any).

Walls[]

Wall of Thorns (Pyramid 3-50 Dungeon Fantasy II pg 15) uses Increased 1/2D on both the Crushing (rigid) and Impaling (permeable) aspects.

Discussions[]

29 March 2009 in http://forums.sjgames.com/showpost.php?p=763857&postcount=9 "Not another shrubbery" claimed:

Cones, as a type of area effect, do not have a 1/2D range.

It is unclear where this idea that Area Effect or Cone removes 1/2D comes from, as neither enhancement states this.

Although B378 says "Some ranged weapons (e.g., grenades) do not suffer a reduction in damage; these do not list a 1/2D range." this could simply reflect buying Increased Range only for 1/2D.

413-414 discusses reduced damage with distance for these via the Dissipation limitation but does not explicitly exclude stacking this with the halving from 1/2D.

Examples[]

GURPS Ultra-Tech:

  • pg 121 "Microwave Disruptor" a "ranged cone" attack with 1/2D
  • pg 122 "Neural Disruptor" same
  • pg 125 "Sonic Nauseators" a cone attack with 1/2D (+3 beyond)

In 2013 sir pudding claimed in http://forums.sjgames.com/showthread.php?p=1565825

Lots of published cone attacks have 1/2D ranges. The Dragon-Blooded's firebreath does for sure. I believe the Sonic Screamer does as well.

GURPS Dungeon Fantasy 3 (The Next Level) page 20 actually lists "Burning Attack 1d (Jet, +0%)" and the word Cone does not appear. Nor is the Sonic Screamer a cone attack (pudding probably was remembering the Nauseator)

He also refers to Kromm supporting that there is a 1/2D earlier in the thread. URL needed for that post to confirm.

See also[]

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