SERNEMLabs
Sign in
Back to LabsLAB / 002 · INCIDENT SIMULATOR

DECISION TRAINING / SCENARIO LIBRARY

Make the field decision. Live the consequence.

Branching scenarios built around real HSE incident logic. Every choice affects Safety, Judgment, and Response scores, testing decision quality under changing conditions rather than memorized answers.

36 scenarios3 guest access+3 free member30 Premium36 live scenarios8–10 decisions / scenario
Play the first 3 scenarios without an account. A free account unlocks 3 more and saves your personal decision analysis and result history.
01GUEST · FREE
Hot Work / Gas Testing · EXPERT

Hot Work: The Reading Changes

Changing gas readings, permit control, isolation, retesting and restart decisions.

02GUEST · FREE
Work at Height · BASIC

Work at Height: One Anchor Left

Anchor choice, access, dropped-object exposure, rescue preparedness and stop-work judgment.

03GUEST · FREE
Confined Space · BASIC

Confined Space: Conditions Shift

Atmospheric change, ventilation loss, attendant response, rescue preparedness and permit suspension.

04FREE MEMBER
LOTO / Isolation · BASIC

LOTO: Unexpected Energy

Zero-energy verification, stored energy, group lockout and restart decisions.

05FREE MEMBER
Scaffolding · BASIC

Scaffolding: Status Changed

Tag status, access, guardrails, loading and unauthorized modification decisions.

06FREE MEMBER
Excavation · BASIC

Excavation: Water Is Rising

Ground stability, water ingress, access, utilities, plant interface and emergency withdrawal.

07PREMIUM
Hot Work / SIMOPS · EXPERT

Hot Work: Process Instability

Competing controls, process changes, fire-watch limits and permit validity under production pressure.

08PREMIUM
Hot Work / SIMOPS · EXPERT

Hot Work: SIMOPS During Shutdown

Multiple simultaneous activities, uncertain isolation ownership and restart pressure during shutdown.

09PREMIUM
Work at Height · EXPERT

Work at Height: Weather Turns

Wind escalation, rescue preparedness, temporary access and changing exclusion zones.

10PREMIUM
Work at Height / SIMOPS · EXPERT

Work at Height: Lift Below

Work at height above lifting operations with competing permits and rescue constraints.

11PREMIUM
Confined Space / Rescue · EXPERT

Confined Space: Entrant Feels Unwell

Early symptoms, rescue activation, ventilation uncertainty and unauthorized rescue pressure.

12PREMIUM
Confined Space / Isolation · EXPERT

Confined Space: Isolation Doubt

Conflicting isolation records, process ownership, rescue constraints and permit revalidation.

13PREMIUM
LOTO / Group Lockout · EXPERT

LOTO: Shift Change

Group lockout transfer, missing worker, shift handover and restart pressure.

14PREMIUM
LOTO / Process Isolation · EXPERT

LOTO: Complex Isolation Boundary

Multi-energy systems, conflicting drawings, trapped pressure and disputed isolation ownership.

15PREMIUM
Scaffolding · EXPERT

Scaffolding: Load Added

Material loading, partial dismantling, access changes and inspector escalation.

16PREMIUM
Scaffolding / SIMOPS · EXPERT

Scaffolding: Multi-Contractor Handover

Multiple contractors, disputed ownership, altered loading and incomplete handover controls.

17PREMIUM
Excavation / Underground Services · EXPERT

Excavation: Unknown Utility

Conflicting drawings, locator uncertainty, hand digging and permit escalation.

18PREMIUM
Excavation / SIMOPS · EXPERT

Excavation: Crane Beside the Trench

Ground bearing, crane outrigger loads, trench stability and competing work priorities.

19PREMIUM
Lifting Operations · EXPERT

Lifting: The Blind Zone

Exclusion zone, signaler control, blind lift and suspended-load decisions.

20PREMIUM
Lifting Operations · EXPERT

Lifting: Plan No Longer Fits

Lift-plan deviations, rigging changes, wind limits and supervisor pressure.

21PREMIUM
Critical Lifting · EXPERT

Lifting: Tandem Critical Lift

Two-crane coordination, load transfer, changing radius and conflicting command authority.

22PREMIUM
Electrical Safety · EXPERT

Electrical: Backfeed Detected

Isolation boundaries, test-before-touch and unexpected voltage decisions.

23PREMIUM
Electrical Safety · EXPERT

Electrical: Voltage Returns

Induced voltage, temporary earthing, testing method and energized-work escalation.

24PREMIUM
Electrical / Switching · EXPERT

Electrical: Switching Conflict

Remote switching, conflicting permits, communication failure and restoration pressure.

25PREMIUM
Chemical / Process Safety · EXPERT

Chemical Release: Wind Shift

Release recognition, wind direction, PPE limits and evacuation decisions.

26PREMIUM
Chemical / Emergency · EXPERT

Chemical Release: Substance Unknown

Unknown substance, conflicting SDS information, zone control and responder escalation.

27PREMIUM
Process Safety / SIMOPS · EXPERT

Process Release: Contractors in the Plume

Contractor accountability, process isolation, changing plume and emergency command decisions.

28PREMIUM
Mobile Equipment / Traffic · EXPERT

Mobile Equipment: Reversing Conflict

Pedestrian segregation, spotter control, visibility and route-change decisions.

29PREMIUM
Mobile Equipment / Logistics · EXPERT

Mobile Equipment: Congested Workfront

Multiple vehicles, temporary routes, blind spots and production-driven congestion.

30PREMIUM
Mobile Equipment / SIMOPS · EXPERT

Mobile Equipment: SIMOPS Crossing

Heavy transport crossing active work zones with competing traffic controls and schedule pressure.

31PREMIUM
Emergency Response · EXPERT

Fire & Emergency: First Five Minutes

Alarm, evacuation, initial command, accountability and first-response decisions.

32PREMIUM
Emergency Response · EXPERT

Fire & Emergency: Person Unaccounted For

Muster uncertainty, rescue pressure, smoke boundaries and command escalation.

33PREMIUM
Emergency / SIMOPS · EXPERT

Fire & Emergency: Multiple Events

Competing emergencies, limited resources, command transfer and site-wide priorities.

34PREMIUM
Line Breaking · EXPERT

Line Breaking: Residual Pressure

Residual pressure, draining, flange opening and line-of-fire decisions.

35PREMIUM
Line Breaking / Isolation · EXPERT

Line Breaking: Identification Conflict

Line identification, drawing conflicts, isolation proof and workface pressure.

36PREMIUM
Line Breaking / SIMOPS · EXPERT

Line Breaking: Live Process Nearby

Live adjacent systems, shared drains, process upset and disputed isolation ownership.