"Save or Die" effects in GURPS.

[cmdicely]

Originally Posted by LemmingLord

Let's see.. Star Trek has phasers, instant kill.

Phasers may usually instantly kill (on certain settings), but they don't tend to be all-or-nothing, they are much better modelled as massive-damage weapons than as Affliction weapons except for the stun effects (and even some of those might work better as fatigue damage attacks.)

War of the Worlds, Death Rays, instant kill.

Again, War of the Worlds heat rays are pretty clearly better modeled as massive damage weapons than Affliction weapons.