100% free, unlimited rounds, no login or subscription ever required.

Guess within 20% error three times in a row to start a streak. Each extra good guess stacks up to a 3× score multiplier - shown in gold above your scoreboard card.

Classic (any cities), Same Continent (easier distances), Ultra Long Haul (10,000+ km), and City Sprint (under 1,500 km). Each changes which city pairs appear.

Bots simulate realistic guessing. Easy = ~45-85% off. Medium = ~18-43% off. Hard = ~4-16% off. They also get streaks and score points just like humans.

Base score up to 1,000 points from accuracy, then multiplied by your streak bonus (1× to 3×). Perfect guess = 1,000 × multiplier.

Plane ~900 km/h · Car ~100 km/h (road factor ×1.3) · Train ~160 km/h · Walking ~5 km/h · Boat ~30 km/h. All are realistic averages.

Yes - the default is a single human player. Just hit Start Game and play as many rounds as you like.

60+ major cities across every continent. Challenge modes filter them to match their distance criteria.