Scenarios

World War 3 scenarios and escalation thresholds

WW3Risk treats World War 3 scenarios as evidence-defined escalation states, not predictions. The continuous model handles ordinary variation, while a small number of objectively defined factual states can impose a minimum index level while active.

Approved floors2
Direct nuclear combatFloor 80
Confirmed nuclear useFloor 96
Floors additive?No
Approved

Two factual regimes currently have floors

A floor is a minimum, not a bonus, multiplier or probability. If the continuous score is already above the floor, it remains unchanged.

Floor 80Direct nuclear-power combat confirmed

Requires two nuclear-armed state parties and confirmed direct interstate kinetic action. A score above 80 does not prove the predicate is active.

Floor 96Confirmed nuclear use

Requires strong evidence that a nuclear weapon was used in hostilities or deliberate attack. Testing is not equivalent to wartime use.

Combination ruleHighest active floor only

Active floors combine using max(). They never add to each other or to the continuous score.

Research-only

Other candidate regimes remain unapproved

These concepts are tracked as methodology research but do not currently have approved floors.

Sustained nuclear-power combat

Persistence criteria remain a methodological choice.

Collective-defence escalation

Requires a bounded treaty/applicability registry before production use.

Strategic nuclear exchange

The boundary from limited nuclear use remains unresolved.