Four in a row · Rondo

Four in a row online, with real players

Drop a disc, watch it fall, line up four before your opponent does. A quick game with a real player in seconds, or a computer one at once.

Free. No account, no email, no password — install and play.

In the app

1A real opponent in seconds — and a computer opponent at once if nobody is around.

2Play by mail: make your move whenever you like, Rondo tells you when it’s your turn.

3Chat room in your language, friends, rematches, ranked seasons.

4Daily quests and achievements — every game counts.

Connect four of your discs in a line — horizontal, vertical or diagonal.

Players alternate dropping one disc into any of the seven columns; it falls to the lowest empty slot. A full column cannot be played.

If the grid fills up with no line of four, the game is a draw.

Install Rondo and tap the game. No sign-up.
An opponent is seated in seconds — a real player or a computer opponent if nobody is around.
Say hi in the chat room for your language, challenge friends, play by mail when you’re busy.

Is Four in a row free on Rondo?

Yes. Every game on Rondo is free to play. Coins and cosmetics are optional and never change the rules.

Do I need to register?

No. Install the app and tap Four in a row; a profile is created for you. You can link a Google or Apple account later to keep it across devices.

Can I play Four in a row with friends?

Yes. Challenge a friend, share a room code, or play by mail with someone in another time zone.