Hard Vacuum + cold: hold breath CON rounds, then Fort saves vs ebullism (DC 15, 1d6/round + Sickened) and cold (DC 15, 1d6/round + Fatigued).
Hard Vacuum + cold zones are areas with no atmosphere and extreme cold -- deep space, a Derelict ship, or a cryo-chamber breach. Characters in these zones must hold their breath for a number of rounds equal to their Constitution (minimum 2). Each round beyond that, they make a Fortitude save (DC 15) or take 1d6 damage from ebullism and gain the Sickened condition. Additionally, they must make a Fortitude save (DC 15) each hour or take 1d6 cold damage and gain the Fatigued condition. Characters wearing sealed suits gain +4 resistance to these saves.
Rules Reference
Field
Value
Duration / Default Formula
until re-pressurized or warmed; ticks each round/hour
Duration / Type
persistent
Onset / Trigger
exposure
Onset / Type
immediate
Prevented By
Sealed suit, Construct physiology (does not breathe)
Prevents
Speech, Sound-based communication
Recovery / Requires Warmth
true
Save / Dc
15
Save / Interval
1 round (ebullism), 1 hour (cold)
Save / Type
Fortitude
Stacking
replace
Category
hazard
Effect
description: After held-breath rounds: 1d6 ebullism damage per failed Fort save.
Field
Value
description
After held-breath rounds: 1d6 ebullism damage per failed Fort save.
modifier
-1d6
target
hp
description: 1d6 cold damage per failed Fort save.
Field
Value
description
1d6 cold damage per failed Fort save.
modifier
-1d6
target
hp
description: Gains Sickened while exposed (ebullism).
Field
Value
description
Gains Sickened while exposed (ebullism).
modifier
sickened
target
condition
description: Gains Fatigued from cold exposure.
Field
Value
description
Gains Fatigued from cold exposure.
modifier
fatigued
target
condition
description: Fail by 5+ = unconscious.
Field
Value
description
Fail by 5+ = unconscious.
modifier
unconscious
target
condition
description: After CON + 2 rounds without air, suffocates and begins dying (COND-BLEEDING).
Field
Value
description
After CON + 2 rounds without air, suffocates and begins dying (COND-BLEEDING).
modifier
suffocate
target
condition
Mitigation
description: Sealed suit grants +4 resistance.
Field
Value
description
Sealed suit grants +4 resistance.
description: Patch a punctured suit with a Reflex save (DC 15) or Mechanics check.
Field
Value
description
Patch a punctured suit with a Reflex save (DC 15) or Mechanics check.
description: Re-pressurize the area or move into a pressurized compartment.
Field
Value
description
Re-pressurize the area or move into a pressurized compartment.