Event
Ambulance Event
Updated:
Periodic surge — six or more patients flood the empty rooms at once, starting Shift 4 and repeating every five shifts thereafter.
- Trigger
- Begins automatically on Shift 4 and re-fires on every fifth shift thereafter (9, 14, 19...). Empty rooms fill with six or more arrivals near-simultaneously.
- Time limit
- Surge
- How to handle
- Prioritise: burning patients first (Fire Extinguisher), then critical-patient timer cases, then anyone with a hostile or event marker. Stable admissions go last. Use Speed Cola if available to cut transit time between rooms.
- Failure consequence
- If patients pile up unhandled the room density triggers cascading fail states — fainted patients, fire spread, monster spawns on top of the queued cases.
Six patients, one shift moment
The Ambulance Event is the throughput stress-test that defines Shift 4+. Per Techwiser's events guide, the surge brings "6 incoming patients; some arrive on fire or critically injured" — meaning the queue isn't just six stable admissions, it includes timer-bound emergencies you have to handle in parallel.
The shift trigger is Shift 4 (first appearance), then every fifth shift after (9, 14, 19...). Sources have historically conflated "Shift 4-5" because the first ambulance is at 4, but it sometimes feels like Shift 5 because of the way the warning notification fires.
The triage order that works
Per the shortest-timer rule (also in Techwiser's events guide — "when two or more emergencies trigger at the same time, go by the shortest timer first"):
- Patient on Fire — 60s, but takes about 5s to resolve with Fire Extinguisher. Do these first.
- Critical Patient — 100-120s, but needs FULL treatment chain, not just bed placement.
- Standard admits — no timer, last priority.
The trap is treating the ambulance as "six normal patients but faster". The mixed timer composition is what makes it punishing.
What to stockpile before Shift 4
If you reach Shift 4 without these in inventory, the ambulance catches you unprepared:
- Fire Extinguisher (handles patient-on-fire + any fire-in-room cascade)
- Coffee or Chocolate (sanity buffer for the wave)
- Bandages + Cough Syrup + Medkit (most common treatment items)
- Empty inventory slots for Photo Camera + treatment swaps
Run the Shift 3 Supplies Shop stop with this list in mind.
What goes wrong when emergencies stack
The Ambulance can fire concurrent with other random events — Fire-in-Room, Death Ritual, Bed Monster. Per Techwiser, the shortest-timer rule still applies: Bed Monster (30s) > Death Ritual (40s contested timing) > Patient on Fire (60s) > Patient Fainted (60s).
Sources: Techwiser events guide, Pro Game Guides emergencies.