Radioactive Critter
You see the glow before you see the creature. Green, steady, emanating from the body like heat haze made visible. That glow is the warning, and it is also the weapon. Radioactive critters are living contamination zones: animals so saturated with radiation that their presence alone is dangerous, and their attacks leave wounds that burn long after the flesh has closed. Every moment spent in proximity is a cost, and the bill comes due in radiation sickness, burns, and cellular damage that no amount of willpower can shrug off.
The wasteland produces these creatures in irradiated zones where the old-world poisons have seeped deepest into the soil and water. Generations of exposure have not killed the fauna; the Infection has ensured that much. Instead, it has transformed them into something that absorbs, concentrates, and emits radiation as naturally as breathing. Their claws carry radioactive contamination that transfers on contact. Their blood, when spilled, contaminates the ground beneath them. At higher tiers, they leak radiation passively, contaminate the terrain they walk across, and detonate in a final radioactive burst when killed.
That last part is the one that keeps tacticians up at night. Dead Switch Detonation appears at Menace tier and persists through Apocalyptic. Kill the creature, and it explodes in a radioactive blast that can devastate everyone within range. The fight does not end when the creature falls; it ends when the survivors have cleared the blast radius, treated their radiation exposure, and decontaminated anything the creature touched on its way down. There are no clean victories against a radioactive critter, only faster ones.
At lower tiers, the threat is manageable with distance. Nuisance-tier specimens are brawling-only, meaning ranged weapons can handle them without risk of contamination. Hazard tier adds Radiation Immune, and by Menace tier, Natural Armor, Radioactive Leak, and Dead Switch Detonation transform the creature into something that requires protective gear and coordinated planning. Catastrophic tier adds Radioactive Meltdown for major radiation bursts, and the Apocalyptic tier layers on Area of Effect Blinding, Area of Effect Radiation Rot, Ranged Damage Reduction, and five uses of Meltdown. The only scope type with an environment restriction, Radioactive critters can never exist in the Mortis Amaranthine. Everywhere else, the green glow is always a possibility.
The wasteland produces these creatures in irradiated zones where the old-world poisons have seeped deepest into the soil and water. Generations of exposure have not killed the fauna; the Infection has ensured that much. Instead, it has transformed them into something that absorbs, concentrates, and emits radiation as naturally as breathing. Their claws carry radioactive contamination that transfers on contact. Their blood, when spilled, contaminates the ground beneath them. At higher tiers, they leak radiation passively, contaminate the terrain they walk across, and detonate in a final radioactive burst when killed.
That last part is the one that keeps tacticians up at night. Dead Switch Detonation appears at Menace tier and persists through Apocalyptic. Kill the creature, and it explodes in a radioactive blast that can devastate everyone within range. The fight does not end when the creature falls; it ends when the survivors have cleared the blast radius, treated their radiation exposure, and decontaminated anything the creature touched on its way down. There are no clean victories against a radioactive critter, only faster ones.
At lower tiers, the threat is manageable with distance. Nuisance-tier specimens are brawling-only, meaning ranged weapons can handle them without risk of contamination. Hazard tier adds Radiation Immune, and by Menace tier, Natural Armor, Radioactive Leak, and Dead Switch Detonation transform the creature into something that requires protective gear and coordinated planning. Catastrophic tier adds Radioactive Meltdown for major radiation bursts, and the Apocalyptic tier layers on Area of Effect Blinding, Area of Effect Radiation Rot, Ranged Damage Reduction, and five uses of Meltdown. The only scope type with an environment restriction, Radioactive critters can never exist in the Mortis Amaranthine. Everywhere else, the green glow is always a possibility.
Basic Information
Anatomy
The green glow is not cosmetic. It emanates from within the creature's body, visible through skin that has gone translucent or patchy from prolonged radiation exposure. The fur, scales, or hide (depending on the base animal) shows signs of severe mutation: thinning in patches, revealing the luminous tissue beneath, or growing in irregular patterns around tumorous growths that pulse with contained energy.
The flesh itself has a slightly rotted quality, not from disease but from the constant cellular damage that radiation inflicts on living tissue. Greenish ooze seeps from wounds and from natural openings, carrying concentrated radioactive contamination. The eyes often glow with the same green luminescence as the body, and at higher threat tiers, the creature leaves visible traces of contamination in its footprints and on surfaces it contacts. An area recently visited by a radioactive critter can be identified by the faint residual glow on the ground and the acrid, metallic smell that lingers in the air.
The flesh itself has a slightly rotted quality, not from disease but from the constant cellular damage that radiation inflicts on living tissue. Greenish ooze seeps from wounds and from natural openings, carrying concentrated radioactive contamination. The eyes often glow with the same green luminescence as the body, and at higher threat tiers, the creature leaves visible traces of contamination in its footprints and on surfaces it contacts. An area recently visited by a radioactive critter can be identified by the faint residual glow on the ground and the acrid, metallic smell that lingers in the air.
Biological Traits
Radioactive Claws are the baseline attack, appearing at every tier and scaling from three to ten uses. Each strike delivers radiation contamination alongside physical damage. Inflict Radiation Rot (Menace tier and above) applies a persistent condition that degrades the target over time. Radioactive Leak creates a passive contamination zone around the creature, and Radioactive Meltdown delivers concentrated radiation bursts that spike the danger level of the entire encounter area.
Dead Switch Detonation appears at Menace tier and persists through Apocalyptic, providing a single-use radioactive explosion triggered by the creature's death. At Apocalyptic tier, Area of Effect Blinding and Area of Effect Inflict Radiation Rot add area denial capabilities that affect entire groups.
Defensively, the profile is focused. Radiation Immune (Hazard tier and above) prevents self-damage. Natural Armor (Menace and above) provides physical resilience. Ranged Damage Reduction appears only at Apocalyptic, and there is no Mental Armor, Sturdy Critter, or Melee Damage Reduction at any tier. The creature is vulnerable to sustained physical assault, which creates a paradox: the most effective way to fight it is to close distance and attack, but proximity is exactly where the radiation exposure is most dangerous. Protective gear and radiation treatments are not optional for these encounters.
Dead Switch Detonation appears at Menace tier and persists through Apocalyptic, providing a single-use radioactive explosion triggered by the creature's death. At Apocalyptic tier, Area of Effect Blinding and Area of Effect Inflict Radiation Rot add area denial capabilities that affect entire groups.
Defensively, the profile is focused. Radiation Immune (Hazard tier and above) prevents self-damage. Natural Armor (Menace and above) provides physical resilience. Ranged Damage Reduction appears only at Apocalyptic, and there is no Mental Armor, Sturdy Critter, or Melee Damage Reduction at any tier. The creature is vulnerable to sustained physical assault, which creates a paradox: the most effective way to fight it is to close distance and attack, but proximity is exactly where the radiation exposure is most dangerous. Protective gear and radiation treatments are not optional for these encounters.
Behaviour
Radioactive critters are drawn to areas of high radiation, which means they concentrate in the irradiated wastelands, crumbling nuclear ruins, and contamination zones that scar the landscape. Their behavior is instinctual rather than cunning; they do not ambush or strategize. They approach, they attack with radioactive claws, and the contamination does the rest.
What makes them tactically distinctive is not intelligence but inevitability. Every moment of engagement increases the survivors' radiation exposure. Every strike from the creature's claws delivers contamination alongside physical damage. Higher-tier specimens leak radiation passively into the surrounding area, meaning proximity itself is a weapon. The creature does not need to be aggressive to be lethal; it just needs to be present.
The Dead Switch Detonation behavior is not voluntary; it is a biological response to catastrophic structural failure. When the creature's body gives out, the concentrated radiation within it releases in a single devastating burst. Survivors who put down a radioactive critter and fail to clear the area discover this the hard way. The detonation turns victory into a secondary crisis, and at higher tiers, multiple Radioactive Meltdowns during the fight create an environment where the ground itself becomes a hazard.
What makes them tactically distinctive is not intelligence but inevitability. Every moment of engagement increases the survivors' radiation exposure. Every strike from the creature's claws delivers contamination alongside physical damage. Higher-tier specimens leak radiation passively into the surrounding area, meaning proximity itself is a weapon. The creature does not need to be aggressive to be lethal; it just needs to be present.
The Dead Switch Detonation behavior is not voluntary; it is a biological response to catastrophic structural failure. When the creature's body gives out, the concentrated radiation within it releases in a single devastating burst. Survivors who put down a radioactive critter and fail to clear the area discover this the hard way. The detonation turns victory into a secondary crisis, and at higher tiers, multiple Radioactive Meltdowns during the fight create an environment where the ground itself becomes a hazard.
Living contamination zones that irradiate everything they touch.
Scope Type
Radioactive
Threat Range
Nuisance through Apocalyptic
Body Range
10-250 (base) + scope modifiers
Key Trait
Radioactive Claws, Dead Switch Detonation, Radioactive Meltdown
