Vitals is a real-time clinical emergency you play in the browser: a deterministic physiology engine, not a script, decides whether the patient lives. Any run can be reduced to one hash and anchored on Solana, and anyone can replay the tape and recompute the score without trusting us. Built on Embla, our production clinical-simulation engine — 433 authored cases, 671 scored runs, 1st place at NECTEC AI for Thai 2026. Free to every learner, forever.