Is Symptom Detective free to play?

Yes! Symptom Detective is free to play directly in your browser. Anyone can jump in and solve clinical cases immediately with no downloads, app installations, or credit card required.

Do I need to install an app or create an account?

No installation is required. The game runs natively on any modern mobile or desktop web browser. You can play your first checkpoint completely anonymously; creating a free account saves your progress and unlocks 5 free daily diagnostic checkpoints.

What medical specialties and hospital wards are featured?

Symptom Detective rotates across 7 core hospital wards: Monday Cardiology, Tuesday Neurology, Wednesday Pulmonology, Thursday Gastroenterology, Friday Endocrinology, Saturday Nephrology, and Sunday Infectious Disease.

How does the diagnostic duel against Dr. Lina work?

While you formulate your hypothesis, Dr. Lina's clinical AI actively reviews the same vitals, offering real-time banter, clinical pearls, and competing differentials. You score points by diagnosing accurately and quickly before Dr. Lina locks in her pick.

Is this suitable for medical students and healthcare trainees?

Yes. All case files are constructed according to authentic pathophysiological mechanisms and evidence-based diagnostic criteria, making it a high-yield, engaging practice tool for USMLE, NCLEX, and clinical rotation review.

Can I play on my mobile phone?

Yes. Symptom Detective features a dedicated, thumb-friendly mobile interface with tactile case tabs, collapsible evidence files, and responsive diagnostic pads tailored for iOS Safari and Android Chrome.

Clinical Arcade Lobby

Mind & Diagnostics • Live Ward Duels

Symptom Detective

Unseal clinical evidence • Formulate differential • Duel Dr. Lina

Unseal authentic patient case files across 7 hospital wards. Formulate your differential and duel directly against Dr. Lina to test your clinical acumen.

Unsealing Case #1...

Unsealing Case Dossier #1...

Reviewed September 2026Zero Download • Browser Native7 Specialty Wards

Clinical Engine v1.4 • DrLina Clinical Intelligence

The Clinical Diagnostic Arena: Why Symptom Detective is Different

Most online trivia games rely on static memorization. Symptom Detective, developed by the DrLina Clinical Intelligence Engine (also known as Dr. Lina, Dr Lina, and Dr Lina AI), transforms clinical reasoning into a live diagnostic duel. Each case simulates real-world hospital admissions, presenting authentic physiological curves, unvarnished vital sign telemetry, and subtle clinical red herrings.

Whether you are a medical student training for USMLE rotations, a nurse evaluating emergency triage, or a health-curious puzzle solver, Symptom Detective trains you to filter out noise, spot cardinal clinical signs, and lock in the definitive diagnosis under a realistic 90-second clinical timer.

How to Play Symptom Detective Online

Master the 4-step clinical differential protocol to outperform Dr. Lina's diagnostic reasoning.

STAGE 01

Unseal Patient Case File

Inspect age, sex, chief complaint, symptom onset timeline, and baseline vitals (BP, heart rate, temperature, oxygen saturation). Note physiological deviations immediately.

STAGE 02

Analyze Lab Evidence & Telemetry

Examine focused diagnostics including cardiac markers, arterial blood gases, complete blood counts, and ECG rhythm strips. Differentiate high-acuity pathologies from non-urgent mimicries.

STAGE 03

Lock In Differential Diagnosis

Select your top clinical differential before the 90-second timer hits zero. As you deliberate, Dr. Lina's clinical engine delivers real-time banter and hints to challenge your confidence.

STAGE 04

Review Physiological Debrief

Read the verified pathophysiological rationale behind the correct diagnosis, evaluate clinical pearls, earn diagnostic accuracy score points, and advance to higher-acuity wards.

7-Day Specialty Hospital Ward Rotation

Each day of the week, DrLina Symptom Detective cycles through a different clinical ward with specialty-specific mysteries.

Monday

Cardiology

Acute coronary syndromes, aortic dissection, arrhythmias, and pericardial friction rubs.

Tuesday

Neurology

Focal ischemic stroke, myasthenia gravis, migraine aura vs. TIA, and cerebellar ataxia.

Wednesday

Pulmonology

Tension pneumothorax, pulmonary embolism, COPD exacerbations, and interstitial patterns.

Thursday

Gastroenterology

Acute mesenteric ischemia, pancreatitis, perforated ulcers, and hepatic encephalopathy.

Friday

Endocrinology

Thyroid storm, diabetic ketoacidosis (DKA), pheochromocytoma, and Addisonian crisis.

Saturday

Nephrology

Acute kidney injury (AKI), glomerulonephritis, electrolyte storms, and nephrotic syndrome.

Sunday

Infectious Disease

Infective endocarditis, Lyme neuroborreliosis, opportunistic infections, and septic shock.

Frequently Asked Questions

Everything you need to know about playing DrLina Symptom Detective online.

Medical Content Reviewed by Dr. Lina AI Medical Board • Verified by DrLina Clinical Intelligence Engine.

Clinical Care Charter•Editorial Standards•Educational Game Disclaimer