Immunitas: Immune Strategy

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Everyone
5+
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Content rating
Everyone
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About this game

You are the commander-in-chief of the immune system.

Bacteria slip in through a wound. Viruses hide inside cells. Pollen tricks your defenses. Hold the line with neutrophils, identify the enemy with dendritic cells, finish research in the lymph nodes, then strike back with antibodies and killer T cells. Fight too hard, though, and a cytokine storm will bring down the body you are protecting.

■ Strategy grounded in real immunology
· Buy time with innate immunity, finish with adaptive immunity
· Deduce what the enemy is from the symptoms
· Variable or conserved site — your research target decides the fight
· Inflammation, fever, cytokines: immunity is both weapon and risk

■ Easy to start
An 8-step tutorial and a "next step" hint for your first few games. Every cell carries a one-word role (Neutrophil · Block, Dendritic cell · Scout), so you can follow the flow from the start.

■ One person's lifetime
Childhood → adulthood → old age. Infections you beat remain as immune memory, and immunity ages along with the host. Pick constitution cards between stages to shape this person's immune system.

■ Many kinds of pathogens
29 pathogens: bacteria, viruses, fungi, parasites, cancer cells, even prions. Tuberculosis granulomas, malaria fever cycles, measles immune amnesia, diphtheria toxin: each disease is fought differently. In childhood you fight inside a child's body, with a bigger head and shorter legs.

■ Case Files — infections from history
Cholera in London, 1854. Tuberculosis in Berlin, 1882. Pasteur and a nine-year-old boy, 1885. The 1918 flu. The serum sled run to Nome, 1925. The first penicillin, 1941. The first AIDS report, 1981. SARS, 2003. Relive eight real events with the medicine of their day — no drugs yet, waiting for the sled dogs, and how history actually ended — illustrated with public-domain archival photos.

■ Daily Infection
One stage a day — everyone meets the same infection on the same date. Keep your streak and share your result.

■ Codex
Pathogens and immunology terms you meet are collected with microscope-style illustrations. Plain words in play, the real science in the codex.

■ This version (free trial)
· Tutorial, life mode (childhood to adulthood), 12 practice stages, 8 Case Files, Daily Infection
· Old age, sandbox and more will open in the full version
· No ads, no account, fully offline
· Korean / English (beta)
· Art and sound are handmade (a few effects layer CC0 recordings; Case Files use public-domain archival photos) and still being polished

This game is not medical advice. Immunity is simplified for play; consult a medical professional for diagnosis or treatment.
Command the immune system and guard one person's life against infection.
Updated on
Nov 2, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
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  • No data collected
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What’s new

Immunitas launches! Command the immune system against 29 pathogens. 12 practice stages, Life mode, and 8 Case Files from real outbreaks in history.
Content rating
Everyone
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App support

About the developer
강현우
kangturl1@gmail.com
장위동 231-231 하베하우스, 603호 성북구, 서울특별시 02742 South Korea