Geography puzzle game
Solve a logic puzzle, collect a country's stamps and learn something about it.
Worlddoku turns a sudoku-style puzzle into a trip around the world. Each of the 30 countries has an easy, a medium and a hard board, and finishing a level adds that country's stamps to your passport and lights it up on your globe.
What you pick up along the way
Every stamp comes with a note. A few from the game:
- Sardine (Portugal)Grilled sardines are the taste of summer festivals.
- Turkish tea (Turkey)Dark tea served in small tulip-shaped glasses, all day long.
- Mint tea (Morocco)Green tea with fresh mint, poured from a height to make foam.
- Table Mountain (South Africa)A flat-topped mountain above Cape Town, often under a “tablecloth” of cloud.
- Borobudur (Indonesia)A ninth-century Buddhist temple on Java, the largest in the world.
- Kiwi (New Zealand)A flightless, nocturnal bird that is a national symbol.
- Statue of Liberty (United States)A copper gift from France, unveiled in New York Harbor in 1886.
In the classroom or at home
- Free and private: there is no account, and progress is saved on the device.
- A gentle start: the easy 5×5 boards teach the rules, and hints explain each step in words.
- Short sessions: a level takes a few minutes, which suits a warm-up or a quiet corner of the day.
- Real reasoning: every board has one solution you can reach by logic, so there is nothing to guess.
The route
Levels travel east around the world: Portugal, Spain, France, Italy, Greece, Turkey, Egypt, Morocco, Ethiopia, Kenya, South Africa, India, Nepal, Thailand, Vietnam, Indonesia, China, South Korea, Japan, Australia, New Zealand, Peru, Brazil, Argentina, Mexico, United States, Canada, Iceland, Netherlands, Ireland.
Questions
Is Worlddoku a geography game?
It is a logic puzzle with a geography theme. Every level is a country, you collect nine stamps from it, and each stamp has a short note about food, a landmark or a tradition. It teaches by exposure, not by quizzing.
Which countries are included?
Thirty countries across Europe, Africa, Asia, Oceania and the Americas, from Portugal and Spain to Japan, Brazil and Ireland. The first level of each difficulty is Portugal, and the route travels east around the world.
Can I use it in a classroom?
Yes. It is free, needs no account and runs in any browser on phones, tablets and computers. Progress stays on each device, and there is a reset button for shared computers.
Does it show maps and flags?
Every country has its flag on the level pages. A globe fills in as you finish countries, and your downloadable passport shows a world map of everywhere you have collected.