CountryChain

A geography chain battle. Connect countries that share a border.

Start from one country — say France — then name a country that borders it, then a country bordering that one, and so on. If you can't name a connecting country, you lose. Corner your opponent into a dead end, or run out their clock, to win.

■ Three ways to play
- vs CPU: play solo against the computer
- Pass-and-play: share one device and take turns against the person next to you
- Online: share a room code to play a friend in real time (no account or sign-in)

■ Features
- A world map to check where each country is
- Hint: peek at the countries you can connect to now (peeking spends your own time, so it stays fair)
- Toggle the time limit and the map on or off
- No ads, ever — nothing breaks the pace of a match

■ Premium (one-time purchase, optional)
Want to play by your own rules? Unlock rule customization with a single one-time purchase (hint count, wrong-answer penalty, starting country, and more). You can still play every mode to the end for free.

A free brain game and geography quiz — learn the world map, country names, and borders while you play. Great for education and the whole family.