Before you play
What The Modern Slavery Rank Measures
This game uses the 2023 Global Slavery Index country data from Walk Free, ranked by estimated prevalence of modern slavery per 1,000 population.
- Gameplay follows the prevalence ranking: countries nearer the top rank are estimated to have worse prevalence.
- Each reveal also keeps the prevalence per 1,000 people and the estimated number of people in modern slavery for later reference.
- The index is an estimate built from surveys, modelling, and regional extrapolation, not a direct census of every victim.
This is a ranking of estimated prevalence, which means hidden abuse, state secrecy, and data gaps are part of the number rather than outside it.