Immunity vs Pickle Machines

YOU ARE THE LAST LINE OF DEFENSE. Play as a macrophage — the immune system's most powerful cell — and fight through 10 zones of the human body in this biology-based action roguelite. THE BODY IS UNDER ATTACK. From the Lymph Node to the Heart, real pathogens have invaded every organ. Bacteria. Parasites. Viruses. Kidney stones. Blood clots. Each zone brings new enemies grounded in actual cell biology — every creature, ability, and mechanic is based on how the immune system really works. BUILD YOUR IMMUNE RESPONSE. Every run is different. Collect 27+ adaptations and abilities as you progress — Cytokine Burst, Fever Mode, Phagocytosis, Neutrophil Swarm, Complement Cascade, and more. Stack upgrades. Build synergies. Adapt to every threat. 10 ZONES. 10 BOSSES. ▸ Lymph Node — face the Dormant Sentinel ▸ Lungs — battle the Pneumonia Mass ▸ Bloodstream — confront the Sepsis Herald ▸ Stomach — destroy H. Pylori Overlord ▸ Brain — survive the Neuroinflammation Prime ▸ Liver — fight the Cirrhosis Node ▸ Small Intestine — stop the Tapeworm Queen ▸ Large Intestine — dismantle the Bacterial Megacolony ▸ Kidneys — shatter the Nephrolithic Golem ▸ Heart — expel the Myocardial Invader THEN FACE THE FINAL BOSS. Cancer. The body's own cells gone wrong. A corrupted mirror of yourself. Three phases. Endless copies. No easy victory. ROGUELITE THAT RESPECTS YOUR TIME. ▸ Quick runs — each zone takes minutes ▸ Permanent upgrades carry between runs ▸ No energy systems. No paywalls. Play anytime. ▸ Every run feels different — 27+ items, abilities, and upgrades ▸ One more run feeling that turns five minutes into an hour LEARN WHILE YOU PLAY. Every enemy is a real pathogen. Every ability is a real immune response. Immunity is the only roguelite built on actual immunology — making it genuinely educational without ever feeling like homework. ▸ E. coli that groups and reforms ▸ Fibrin clots that regenerate HP ▸ Calcium oxalate crystals with mineral armor ▸ Platelet swarms that recruit more platelets ▸ A Cancer boss that proliferates when damaged Can the immune system hold?

Some machines do one job. Pickle Machines do it the silliest way possible. GOOD FOR BUSY BRAINS Every puzzle rewards a little planning and a lot of what if. It is gentle problem solving that feels like play, not homework. Kids build the logic without noticing. Grown ups get quietly hooked too. Every level gives you a goofy goal, pop the balloon or drop the ball in the bucket, and a box of parts. You build a wild chain reaction to make it happen. Press Run, watch it go, laugh when it flops, tweak it, and win. WHAT YOU BUILD WITH Trampolines, fans, seesaws, conveyor belts, magnets, cannons, portals, dominoes, candles, spinning wheels, ropes, pulleys, scissors, gears, balloons, cartoon bombs, and a cat. Twenty six parts, each with its own trick. HOW IT PLAYS Tap a part to drop it in. Drag it, spin it, flip it. Hit Run and the whole machine springs to life. Edit puts every part back exactly where it was, so kids can experiment with zero fear of breaking anything. No clock. No wrong way to tinker. MADE TO BE KID SAFE No ads. No in-app purchases. No pop-ups asking for money. Nothing to buy and nothing to sign up for. It works offline, anywhere, and progress saves right on the device. THIRTY FOUR HANDMADE LEVELS Twenty four play with the phone sideways and ten play with it upright. Each one teaches a new part, then dares you to combine them. There is a test bench too, running every single part at once. Build it. Run it. Watch the chaos work.