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Geography, science & math —
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Just States
All 50 US states. A state name appears — click it on the map within 8 seconds.
Geography
Locate
Nebraska
Just States
All 50 US states, one at a time, random order. A state name appears — click it on the map within 8 seconds. No clues, no hints — pure map knowledge.
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Capital
Olympia
Just Capitals
The capital city appears — find the state. Do you know that Olympia is Washington, not Seattle? Or that Springfield is Illinois, not Missouri?
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Croatia
Europe
39 European countries, random order, 8 seconds each. From Portugal to Turkey, Norway to Cyprus — the Balkans alone will test even the most confident geographers.
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Peru
South America
12 South American countries from Brazil to Suriname. Navigate the continent's distinctive shapes — Chile's narrow coastline, Brazil's massive interior.
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Guatemala
North America
23 countries spanning Canada to Trinidad, including Central America and the Caribbean. Find tiny island nations and trace the isthmus from Mexico to Panama.
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Tanzania
Africa
51 African countries — the most challenging continent quiz. From the Saharan giants to the tiny nations of West Africa, this is the ultimate geography test.
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Vietnam
Asia
47 Asian countries from Turkey to Japan, Russia to Timor-Leste. The world's largest and most diverse continent — the Middle East, Central Asia, and East Asia.
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Recon Photos
A photo from a US national park appears — zoomed in at first, slowly revealing more. Pick the right state from 5 choices; a wrong answer drops out every few seconds. Faster answers earn more points.
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Solar System
Solar System Hub →Scale Detective
Which planet is bigger? Which moon has stronger gravity? Compare celestial bodies across size, distance, temperature, and more. 20 questions, 5 seconds each.
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Landing Sequence
Fire thrusters to land safely on moons and planets across the solar system. Each body has its real surface gravity. 8 levels of increasing difficulty.
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Orbit Keeper
Coming SoonKeep planets in stable orbits by adjusting their velocity and trajectory. A physics simulation challenge.
Figure It Out
Figure It Out Hub →Unit Dash
Coming SoonRace to convert between units of measurement. Meters to feet, gallons to liters — how fast can you go?