The Most Realistic
USMLE Step 3 CCS Interface
Our simulator is built to look, feel, and function exactly like the real USMLE Step 3 CCS exam environment — including the Primum software interface. Every screen, order prompt, and clinical scenario mirrors the actual test — so practicing here is true exam preparation.
- 170+ high-yield CCS cases covering the most commonly tested presentations
- Real-time interactive simulation — not just static Q&A
- Full order set of 20,000+ orders — just like the real exam
- Immediate grading and detailed feedback after every case
- Suggestions on how to improve your score for each response
- Works in any modern browser — no download, no installation
- Available on Windows, Mac, iOS, Android, Linux, and Chromebooks
Real-Time Simulator
The interface looks and behaves exactly like the real USMLE Step 3 CCS Primum software. Simulated time advances as you make decisions — not a passive quiz.
Grading & Feedback
Each case delivers a full percentage score with targeted feedback — what you got right, what to improve, and how to boost your score.
170+ CCS Cases
Every high-yield computer-based case simulation scenario tested on USMLE Step 3 — spanning ED, inpatient, outpatient, ICU, and more.
Any Device
No installation required. Runs in any modern browser on Windows, Mac, iOS, Android, Linux, or Chromebook.
CCS Cases vs. UWorld
We're confident that once you try our simulator, you'll see the difference. CCS Cases offers more cases, more realistic grading, and more value — at a fraction of the price.
| Feature | CCS Cases | UWorld |
|---|---|---|
| Number of CCS cases | 170+ cases | 51 cases |
| Full 20,000+ order set (matches real exam) | Limited | |
| Real-time interactive simulation | Limited | |
| Percentage score & targeted feedback | Paragraph only | |
| Case summary after each session | — | |
| No download / browser-based | — | |
| Free trial (2 cases) | — | |
| Price | $70 | $300+ |