This quiz asks for the ten largest deserts on Earth by area — and it uses the scientific definition, which is where most players get tripped up. A desert is defined by how little precipitation falls, not by sand or heat. That means the two biggest deserts in the world are frozen.
Once you've cleared the polar curveballs, the rest of the list tours five continents: Africa, Asia, the Middle East, the Americas, and Australia all make an appearance. It's a genuine test of whether you know deserts beyond the obvious one.
How to play
Each desert is pinned on the map from the start as a location hint — including one pin on Antarctica, which is specially shown for this quiz.
Start typing anywhere; the answer bar matches as you go.
Lenient matching accepts natural short forms — you never need to type the word "Desert".
The timer counts up; a clean, fast run is the goal.
Use give up to reveal whatever's left and record your score.
What counts in this quiz
Exactly 10 deserts, ranked by area — a desert is any large region with very low precipitation, regardless of temperature.
Polar deserts count: the Antarctic Desert (~14.2 million km²) and Arctic Desert (~13.9 million km²) take the top two spots, which is exactly why the definition matters.
Both hot deserts and cold-winter deserts are included — the Sahara sits third behind the two polar giants.
What's not included — and why
The Atacama — famously the driest non-polar place on Earth — doesn't appear: extreme dryness doesn't make it large, and this list is ranked purely by area.
If you only counted hot deserts, the Sahara would be number one; the precipitation-based definition demotes it to third.
Good to know
Parts of Antarctica's Dry Valleys are thought not to have seen rain or snow for nearly two million years.
The Sahara is roughly the size of the entire United States, and it was green savanna as recently as ~6,000 years ago.
Cold-winter deserts can be brutal in both directions — some see summer days above 40 °C and winter nights below −30 °C.