Easy Mode
3 cities, 7,000,000+ population
Labels: Visible
Countries: All excluding China
Medium Mode
5 cities, 2,000,000+ population
Labels: Visible
Countries: No restrictions
Hard Mode
5 cities, 1,000,000+ population
Labels: Visible
Countries: No restrictions
Extreme Mode
5 cities, 100,000+ population
Labels: Visible
Countries: No restrictions
Impossible Mode
5 cities, 50,000+ population
Labels: Hidden
Countries: No restrictions
USA Mode
5 cities, 200,000+ population
Labels: Visible
Countries: United States