Environmental
Environmental Adaptation
AX.C.08.01.06
Biological suitability for environments that are lethal or debilitating to baseline characters.
All Environmental Adaptation perks are passive and always active unless noted. They do not require rolls to maintain. They define survivability thresholds, not capabilities beyond survival.
Amphibious
Effect: The character breathes both air and water equally. Underwater environments impose no penalties to movement, combat, or Talent rolls beyond those that apply physically (ranged attacks work differently, sound travels differently, GM ruling on specific applications). The character can remain submerged indefinitely.
Activation: Passive.
Scope: Self.
Genre Note: Aquatic lineages, gill-integrated biology, dual-respiration implant, amphibious engineering organism.
Vacuum Adaptation
Effect: The character can survive in hard vacuum for up to one hour without equipment before suffering ill effects. Temperature extremes of space (−270°C to direct solar radiation) are tolerated for the same duration. After one hour, the character begins taking 1D6 Health damage per additional minute. Reintegration into a pressurized environment halts this damage immediately.
Activation: Passive.
Scope: Self.
Genre Note: Deep-space lineages, void-adapted biology, vacuum-sealed biological engineering, crystalline-matrix physiology.
Extreme Heat Tolerance
Effect: Environmental heat up to 500°C equivalent does not impose Disadvantage, Conditions, or Health damage on the character. Direct contact with flame or superheated surfaces at this range still deals damage if attacked; this perk governs environmental exposure, not targeted attacks. Above 500°C, normal damage applies.
Activation: Passive.
Scope: Self.
Genre Note: Volcanic-adapted lineages, fire elementals, thermal-shielded biology, heat-sink integrated physiology.
Extreme Cold Tolerance
Effect: Environmental cold to −100°C equivalent does not impose Disadvantage, Conditions, or Health damage on the character. Below −100°C, normal cold exposure rules apply. This perk does not grant Resistance to Cold damage from attacks; it governs environmental exposure only. Activation: Passive.
Scope: Self.
Genre Note: Arctic-adapted lineages, ice elementals, cryo-biology, antifreeze-protein integrated physiology.
Toxic Immunity
Effect: The character is immune to all environmental toxins, poisons, and venoms, both natural and synthetic. Toxic atmospheres, ingested poisons, and injected venoms have no effect. This immunity does not extend to corrosive acids (those deal damage normally) or Necrotic damage typed as disease.
Activation: Passive.
Scope: Self.
Genre Note: Toxin-producing predators (immunity to own output), bacteria-colony lineages, chemically-resistant biology, full-spectrum toxin-filter implant.
Radiation Resistance
Effect: The character reduces all Radiation damage (environmental or targeted) by half before applying to Health (round down, minimum 0). Radiation Conditions (such as radiation sickness) require a Body Save at one Threshold lower than normal to apply.
Activation: Passive.
Scope: Self.
Genre Note: Deep-earth lineages, nuclear-adapted biology, radiation-shielded physiology, heavy-metal biological integration.