Immune Crisis

Immune Crisis is a tower defense game set inside the human body. Pathogens are pouring in through multiple entry points — deploy and grow your immune cells to hold the line, then bring the full power of adaptive immunity online. It plays like a real-time strategy game and teaches like a biology class. Every unit and mechanic mirrors how your immune system actually fights infection. DEFEND THE BODY - Station neutrophils at the entry gates as your fast first responders - Deploy macrophages — tough frontline walls that double as antigen-presenting cells (APCs) - Send in NK cells and killer T cells to hunt down stronger threats - Carry antigens to the lymph node, mature your B cells, and release waves of antibodies LEARN REAL IMMUNOLOGY - Innate vs. adaptive immunity, explained through play - Antigen presentation, helper T cells, B cells, and memory cells - Discover why overreaction (inflammation) can hurt you too ITEMS & TACTICS - Antibiotics, steroids, and interleukin for clutch moments - Keep inflammation in check — too much defense backfires MODES - Campaign: staged missions that introduce each cell type step by step - Endless: push your limits and chase your personal best Earn memory cells as you play and grow stronger over time. Play offline, no sign-up required. Made for curious minds, students, and strategy fans alike. Optional in-app purchases available.