should there actually be "indestructible" weapons?

[Varyon]

Originally Posted by Plane

If B483 has you make HT rolls to avoid "breaking" at 0HP or less... and B484 has you make HT rolls to avoid "death" at -1xHP or less...

If you have max 1HP then they are still two categories (0 HP and -1)

If you have fraction HP which approaches zero, you get to a point where 0HP and -1xHP become closer and closer together.

Maybe for near-massless objects (like energy weapons) with nearly-zero fractional HP you effectively skip that "0 or less" category (can never "break") and instead move right into "HT roll to avoid shattering" territory.

I believe the "break" rules are meant to parallel the "stay conscious" rules for characters, while "shatter" rules are meant to parallel the "death" rules. So, at HP 0 or less, the object must make an HT roll each time it is used/stressed (used to attack or parry for a weapon, sat upon for a piece of furniture, etc) to avoid breaking, just as a character at HP 0 or less must make an HT roll each time they do Something during combat (as opposed to Do Nothing). So, the "break" rules would always be in play, at least so long as the target is above -5xHP (or hasn't failed the "shatter" check).

For fractional HP objects, if they have 0.2 HP or more, tracking their HP may be worthwhile (1 damage drops them to -4xHP). If HP is lower than that - and indeed, I'd argue for below 0.5 HP - 1 damage past DR is enough to completely destroy them (drops to -5xHP or lower). Tracking even lower is only an option if you opt to allow for fractional Injury, but GURPS only deals with integer values (indeed, HP below 0.5 should generally just be rounded down to 0, which functions as above - any damage that gets past DR outright destroys the target; HP 0.5 should round up to HP 1).

[Plane]

Originally Posted by Varyon

I'd argue for below 0.5 HP - 1 damage past DR is enough to completely destroy them (drops to -5xHP or lower).

one thing I'm just realizing, when reviewing the -10xHP for "Unkillable 1", is that normally -5xHP is "death" but I think even for non-UK kills, "death" is not "destruction" since you still leave a corpse which can be resurrected long as you aren't dropped below -10xHP

This is a weird issue to me when I think of stuff like cover DR, like if you're a skeleton at -9xHP wouldn't you provide less cover since there's holes in you that bullets can shoot through if allies hide behind your skel?

plus since there's the whole "corpses are unliving, bones are homogenous, ashes are diffuse" kind of metamorphosis where your remains actually gain "Injury Tolerance" as they're broken down, the question is when to enact those template changes at HP multiples

that should prob apply to objects too except they start out unliving (maybe even homogenous if non-complex) so they go through fewer stages