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The Immune System
Real immune cells, each with a job that becomes a fighting style. Get noticed and the host escalates: hunter squads, treatments, Killer T cells, elite cells with affixes, and an adaptive immune system that learns how you play.
Articles
Know your enemyFirst RespondersThe host's white blood cells, antibodies and clotting fragments that fill every fight, from the Nasal Passage to the…13
Deeper in the hostDeep Organ CellsFrom the Lymph Node down, each organ fields its own specialists: buffers, stealth hunters, factories that spawn more…12
Mini-bossKiller T CellsWhen Detection fills to 100, the immune system dispatches Killer T cells: elite hunters that follow you from room to…9
The host fights backTreatments & VaccinesWhen Detection stays high, the host feels sick and takes medicine. A warning pulses, then a dose floods the room with…10
Immune cell activationElite TiersAny regular cell can roll a tier, coloured like gear: white, green, blue, purple, orange, red or prismatic. Higher…8
Named over their headsElite AffixesFrom blue (Rare) up, elites roll affixes: 1 at Rare, 2 at Epic and Legendary, 3 at Mythic and 4 at Prismatic.8
Stealth and alarmDetectionCells start each fight unaware of you. Get spotted, fight loudly and rack up kills, and the immune system's Detection…8
It learnsAdaptive ImmunityThe host doesn't just send more cells: it studies you. It matures with every organ, resists the shot you lean on…8Key numbers
| Immune cell enemy types (incl. the Killer T mini-boss) | 26 |
|---|---|
| Medicine & vaccine enemies | 4 (Tamiflu capsule, tenofovir capsule, flu vaccine vial, PrEP capsule) |
| Elite tiers | 7 (Common to Prismatic) |
| Elite affixes | 8 |
| Detection thresholds | 35 / 60 / 80 hunter squads · 75 treatments · 100 Killer T cells |
| Killer T generations with new skills | 5 (lunge, perforin rings, homing granzymes, cloning, packs of three) |
| Largest Killer T pack | 3 (from Generation 5) |
| Treatment doses | 3 (Antiviral, Booster Shot/PrEP, Interferon) + Radiation Therapy |
| Immune Alert | +1 every 20 seconds (+6% cell health, +4% damage to you per step) |
| Ambush damage | 2.5x |
| Shot-type learning | -30% damage once 60% of your last 20 hits share a shot type |
| Adapted (crimson) cells at a full Cytokine Storm | up to 45%, up to 90% in a Storm Surge |
| Mechanic unlocks (skill-tree level) | Elites L4 · Killer T L6 · Treatments L10 · Learning L13 · Cytokine Storm from organ 4 |