Denis Cercasin

Value proposition

Table of contents

The problem

Nursing trainees have to learn to spot safety-relevant errors — an unsecured bed, a medication that conflicts with a documented allergy, a call bell out of reach. Traditionally this is tested with dry written exams, and hands-on practice carries a real risk: mistakes happen at the expense of real patients.

There is a second, less visible problem: patients are not standard. Care errors look different for a three-year-old child, a patient with dementia, a patient weighing 132 kg, or a patient who speaks no German — yet training material typically defaults to a single “standard patient” (white, male, average build). Two dimensions of this gap are backed by German studies:

  • Language / migration: in a survey of the 478 emergency departments of the DGU trauma network (103 participating), between 45.9 % and 63.4 % of clinics considered translation-related treatment errors possible (Zehnder et al. 2023).
  • Gender: 55 % of surveyed physicians do not rule out having made a misdiagnosis due to gender-specific differences; 70 % of the German population has never heard of the gender health gap (AXA 2025, surveys by YouGov and DocCheck Insights with 2,057 citizens and 300 physicians).

Both figures are self-assessments by the surveyed groups, not counted misdiagnoses — but they show that diversity blind spots in healthcare are a recognized, measurable risk.

Our answer

No dry exam. No endless questions. A challenge in which trainees show that they can safely master critical situations. (German original: „Keine trockene Prüfung. Keine endlosen Fragen. Eine Challenge, in der Azubis zeigen, dass sie kritische Situationen sicher meistern.”)

Room of Horror turns error-finding into an immersive VR challenge:

  • Realistic nursing scenarios in a virtual hospital room — practice without endangering patients.
  • Six diverse patient profiles (child, non-binary young adult, middle-aged woman, Black senior with dementia, obese patient with an amputation, Spanish-speaking patient experiencing homelessness) with patient-specific error scenarios: the same room teaches different lessons depending on who is lying in the bed.
  • Weighted evaluation with instant feedback: every error has a severity weight and criticality; the final report shows what was missed, why it matters, and what to practice next — prioritized the way a real ward would prioritize.
  • Learning with fun: game mechanics (game code, health bar, win/lose screens) make repetition attractive instead of tedious.

The “Room of Horrors” simulation format itself is an established patient-safety training method: studies show it trains situational awareness and hazard recognition for nursing students and professionals (Zimmermann et al. 2021; BMC Nursing 2025). Meta-analytic evidence additionally supports VR as an effective medium in nursing education for knowledge, skills, and confidence (BMC Medical Education 2023). Room of Horror combines both — the error-room method and immersive VR — and adds the diversity dimension that standard formats lack.

Who benefits

Stakeholder Value
Nursing trainees (e.g. at BWK Berlin) Safe, repeatable, motivating practice; exposure to diverse patient realities before the first real shift
Instructors / teachers Configure sessions in the browser (patient, errors, attempt budget), watch progress live, get an automatic weighted evaluation
Training institutions A reusable, extensible platform: new errors, patients, and scenarios can be added without redesigning the system
Future student teams Documented architecture and a backlog of scoped ideas (AI patient dialog, multilingual interactions, religious needs)

Why diversity is the core, not a feature

No(!) patient is standard, because no human is standard. (German original: „Kein(!) Patient ist Standard, denn kein Mensch ist Standard.”)

Every design decision in 2.0 follows from this: the patient table with demographic attributes, per-patient error mappings, room reconfiguration per patient, patient files with individually wrong data, and color-vision accessibility modes in the frontend. The lesson from the project (see Lessons Learned): diversity is not a feature, it is a mindset („Diversität ist kein Feature, sondern ein Mindset”) — treating diversity as a cross-cutting principle made real training challenges visible that a standard patient would have hidden.

Information sources

Assumptions

  • The framing of trainee needs reflects the requirements gathered with the project partner (Lily Dausch, BWK Berlin context) as recorded in the weekly reports; no independent user research was conducted by the team.

Missing information

  • Results of the practice test with BWK trainees (planned 15.09.2026) are not yet available.

Suggested improvements

  • After the September practice test, add measured outcomes (errors found, subjective usefulness) to replace the literature-based effectiveness argument with own data.

Last build: 19 Aug 2026, 05:20+00:00

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