Tetris Friends is an online Tetris game developed by Tetris Online, Inc. Registered users are able to compare their scores with their friends and with the entire community. It is the only official Flash implementation of Tetris made by the Tetris company itself. It at the time was the only official tetris platform that had advertisements played before a match Tetris Friends has over a million registered users.
Tetris Friends features 6 single player modes and 5 multiplayer modes. Coins are earne…