HemoSim
Pablo Kessler Saiz · Sep 23, 2026
HemoSim is a hemodynamic simulation game: you take the controls of a patient in shock and have to keep them alive. Three conditions, drugs that act instantly, a classic monitor or a cockpit of analog gauges. Real physiology, bent freely to make it playable.
About HemoSim
A game about keeping alive a patient who is slipping away. HemoSim puts you behind a monitor. On the other side is a patient in shock: the pulse climbs, the pressure drops, urine output stops. You have drugs, fluids, a defibrillator and very little time. Every lever you pull changes the whole system, and almost never only in the direction you wanted. Three ways to lose a patient Hypertensive heart failure: the heart won't pump and pulmonary pressure rises. Hemorrhage: volume drains away and compensatory tachycardia eventually gives out. Septic shock: resistance collapses and capillary leak empties the system from inside. Ten variables, all coupled Pulse, mean arterial pressure, central venous pressure, cardiac output, blood volume, systemic vascular resistance, pulmonary capillary pressure, pulmonary artery pressure, stroke work and urine output. They all move at once, and none of them moves alone. A drug cabinet with immediate effect Dopamine, dobutamine, epinephrine, nitroglycerin, furosemide, saline, propranolol, amiodarone, transfusion, antibiotics, the defibrillator and BIPAP ventilatory support. Turning up a vasopressor fixes the pressure and breaks something else. That's the
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