GURPSよろず

see p. B40
　Most forms of 「拘束」 seen in fiction fall into one of these categories:

Bonds: In its simplest form, 「拘束」 ensnares the target with some kind of physical “rope.” This doesn’t require special modifiers --but the two most common examples are webbing, which is Sticky (+20%), and the ability to cause existing vegetation to entangle the target, which is Environmental (-40%).

Encasement: Individuals with the power to command elemental forces can sometimes materialize ice, stone, etc. around a foe, sealing him inside.
Simulate this with Engulfing (+60%).
Almost any attack can eventually chip away the material, so Only Damaged By X and Unbreakable are rarely appropriate.

Entombment: Another common elemental attack is turning the earth beneath the victim’s feet to mud or quicksand, causing him to sink into the ground. Wizards and evil priests might even command the ground to open up and swallow him! This is Engulfing (+60%), Unbreakable (+40%), and likely Suffocating (+75%). Since it only affects those who are touching the ground and not flying or standing on an artificial surface, it’s also Environmental (-20%).

「力場状」s: Supers and wizards often restrain opponents with mysterious forces. Such 「拘束」s are Unbreakable (+40%) and in most cases One-Shot (-10%). If the target is actually “tied up” --not just rooted in place --add Engulfing (+60%).

Goo: Some monsters “slime” their prey with sticky goo. This glues the victim’s arms to his sides, clogs his mouth, and leaves him helpless.
Represent this with Engulfing (+60%), Only Damaged By Burning or Corrosion (+20%), and Sticky (+20%).
Range is often limited; if so, add 「射程減少」 (-10%/レベル).
These attacks bind a single foe. To affect more than one target by blanketing the area with webbing, quicksand, creeping vines, etc., add 「範囲に効果」 (+50%/レベル). If the effect endures, and affects anyone who blunders into it, take 「持続」 (+40%), too. And if the persistent effect forms a vision-impeding barrier (like dense spider webs), stack Wall (+30% or +60%) on top of that.
■Alternatives
「拘束」 assumes external restraints. If the victim is frozen by magical or psionic control, transfixed by divine will, paralyzed by venom or a superscience weapon, etc., that’s an 「特殊効果」 with a suitable enhancement --most often Attribute Penalty (DX) or Paralysis.
■New Special Enhancements
Standard 「拘束」 leaves the victim’s head poking out and gives him sufficient room to breathe. Certain types of 「拘束」 would logically suffocate or squeeze the target, but this isn’t automatic. To add such effects, buy one of these enhancements:

Constricting: Your 「拘束」 actively constricts the victim. Until he breaks free, the 「拘束」 attacks him each turn with a 「締めつけ」 (p. B43), at a ST equal to that of the 「拘束」. +75%.

Suffocating: Your 「拘束」 cocoons the target or blocks his breathing passages.
While it’s in place, the victim cannot breathe. If he runs out of breath before he breaks free (see Holding Your Breath, p. B351), he starts to suffocate; see Suffocation (p. B436). +75%.

■Powering Up
Powers that project force fields --Gravity, 「サイコキネシス」, etc. --almost always include 「拘束」. It makes sense for powers that can summon matter, too; e.g., Water power might encase the target in ice or turn dry earth into muck. 才能 adds to rolls to hit, but not to ST rolls made for the 「拘束」. For that, buy a higher level of 「拘束」!