GURPSよろず

see p. B46
「防護点」 can represent many defenses that bear little resemblance to one another in the game world, including:

Active Control: Those with powers --especially elemental ones --can frequently use their gifts to divert or negate incoming energies.
Such DR is typically Limited. An entire power source is “Very Common” (-20%), while a specific focus is “Common” (-40%). Many such defenses intercept attacks at a distance from the body, justifying 「力場状」 (+20%).
Supers often add Absorption (+80% or +100%) or Reflection (+100%), too.
In the case of Absorption, use 「持続時間延長」 (+20%/レベル) to slow the rate at which absorbed points trickle away.

Damage Tolerance: Some creatures are huge, have redundant organs (or lack organs), or have a reinforced structure that lets them absorb a lot of punishment.
To represent this, use Ablative (-80%).
This effectively turns DR into Hit Points that don’t result in shock, stunning, knockdown, etc.
when lost, but that don’t increase the damage needed to cause crippling or death.

「力場状」:
A close-fitting sheath of energy or matter projected around the body is a common supernatural and superscience defense, and calls for 「力場状」 (+20%).
Add Can’t Wear Armor (-40%) if this repels anything that gets close to the body, and 「一時的不利な特徴」, No Fine Manipulators (-30%) if it prevents picking things up.
A field that only screens against frontal attacks, like a shield, has Directional (-20%).
Add Affects Others (+50%) and 「範囲に効果」 (+50%/レベル) for a field that covers an area.

Natural Armor: Many natural creatures have a hardened, padded, or thickened outer layer that reduces the impact of attacks.
Bone or chitin calls for unmodified DR, a thick fat layer requires Flexible (-20%), and leathery skin has Tough Skin (-40%).
If this results in a pointy, irregularly shaped, or bulky body that makes clothing impossible, add Can’t Wear Armor (-40%).
It’s possible to have more than one of these general classes of DR, but remember the “Layered” Defenses rule (p. B47): the order in which different kinds of DR apply must be fixed at character creation.
See Partially Limited Abilities (box) for a related option.

■代案
「負傷耐性」 (p. 52) works better for those who “soak up” damage and suffer less injury from it. 「無生物」,
「均一」, and 「集合体」 in particular can be more effective, point for point, than DR; see 「無生物・均一・集合体へのダメージ」 (p. B380).
Damage Reduction is often a better deal, too --especially against massive attacks.
Psycho killers, hulking supers, etc. should consider Supernatural Durability (p. B89) and Unkillable (p. B95) as alternatives or adjuncts to DR.

■パワーアップ
「防護点」 is suitable for nearly any power that can affect the physical world --although it might require several modifiers to make sense.
As part of a power, it often has the 「力場状」 special modifier.
才能 adds to Power Block attempts (see p. 168).

Damage Resistance
see p. B46
Suitably limited Damage Resistance fits many kinds of cinematic campaigns. A few ideas:

Ablative: Some action heroes can absorb a lot of damage before their luck runs out. They suffer kicks, punches, falls, etc., throughout the story, but only get hurt in the finale. To simulate this, the GM may allow DR (Ablative, -80%) [1/level]. Each point of damage rolled blows away a point of DR. This DR doesn’t protect against poison – but while it lasts, it does keep poisoned weapons from delivering their deadly dose! Such DR works much like HP, but the two aren’t the same. Compare lost HP to the victim’s basic HP score to determine crippling, major wounds, and death.
Limited: Other fictional heroes are resistant to bludgeoning but affected normally by blades, bullets, and beams. To represent this, the GM may permit DR (Limited, Crushing, -40%) [3/level]. Limited, Unarmed is also -40%, and affects cutting and impaling Claws, Strikers, and Teeth.
Partial: Martial artists often toughen extremities or limbs into “iron body parts.” Those with Trained by a Master may buy DR with Partial (-80% for one hand or one foot; -40% for two hands, two feet, one leg, or one arm; or -20% for two legs or two arms) and Tough Skin (-40%). This traditionally accompanies Claws (p. 42), or requires or is an Iron Body Parts perk (p. 50).
Tough Skin: The GM may let really tough guys buy DR (Limited, Crushing, -40%; Tough Skin, -40%) [1/level] for their whole body. Attacks that don’t break the skin or carry a contact poison or chi-based touch attack simply hurt less. Some warriors have DR (Tough Skin, -40%) [3/level] and are harder to hurt with all attacks! Martial artists who simulate tough body parts using Partial must also take Tough Skin.

The GM decides how much DR to allow and of what type, and should base the time needed to acquire it through training on its final point cost (see Learnable Advantages, p. B294). Outside of superhero games, DR 1-2 is probably enough unless it’s Ablative. Ablative DR could go up to HP in any cinematic game, and up to 5×HP for heroes who survive 10-story falls and 60-mph car wrecks. Anything is possible, though. Damage Resistance might have nearly any modifier when part of a chi power (see Chi Powers for Martial Artists, p. 46). The GM should design powerful defensive abilities himself and present them in a manner similar to the offensive ones under Innate Attack (pp. 45-47). For instance:

Ghost Shirt (-70%): DR 20 (Limited, Bullets, -60%; Pact, -10%) [30]. Notes: Your chi lets you resist bullets – if you don’t use modern weapons yourself! The special Pact limitation means you must take and observe Vow (Use only muscle-powered attacks) [-10]. If you use guns, explosives, etc., for any reason, you immediately lose the DR until 1d days have passed (the GM rolls in secret). Treat the combination of DR and Vow as a meta-trait: Ghost Shirt [20]. 20 points.