What is Chain?
Chain is a free 30-second geography drill. The game gives you one or two category labels and you name as many cities as you can in half a minute. One wrong answer ends the round, so accuracy matters as much as speed.
How to play Chain
- Read the categories. Single category days are looser pools. Two-category days are tighter — every answer must satisfy both.
- Type a city and press enter. Autocomplete handles common spellings and alternates. Correct picks chain together and stay on screen.
- Avoid duplicates and misses. One wrong answer ends the round immediately. There is no edit and no undo.
- Beat the timer. 30 seconds, no extensions. When time runs out your final count is the score for the day.
- Share or replay. Send your combo to a friend with the shared-challenge URL so they get the same categories. Same pool, different speeds.
Frequently asked questions
How does Chain work?
You see one or two category labels at the top, like "Cities in South America" or "Cities with a metro system". You have 30 seconds to type as many cities that fit as you can. Wrong answer or duplicate ends the round.
What counts as a wrong answer?
Anything that isn't a real city, doesn't satisfy every active category, or is a duplicate of something you already typed. Spelling tolerance is generous and accepts common alternates, but if it can't match a city in the pool the round ends.
How long is a round?
30 seconds. There is no second chance — when the timer runs out or you trip on a wrong answer the round is over and you can compare your count to the global pool size.
Where do the categories come from?
A curated set of geography and travel themes, rotated daily. Single-category rounds are easier; two-category rounds ("Capital city AND on a major river") narrow the pool a lot and reward depth.
Is Chain free?
Yes. Free daily, no account required. Premium is optional and only removes ads.