Free Tetris: Flash-based online game featuring ten levels and score.
Hextris: Rotate and place hexagonal pieces on the board in this online version of Tetris in Java.
Java Tetris: Online Tetris game with piece preview and ten different speeds. Java source code is freely available.
JS Tetris: Javascript game includes choice of start level and Hall of Fame.
JTed: A Columns clone. Includes top 30 highscores, licensing rules for webmasters, statistics and game which includes 2 lives, sound and the option to change speed.
Multris: Realtime multiplayer game that you can play directly in your web-browser, no plug-ins needed. (Java)
Netris: Play Tetris online.
Online Tetris: Free online Java Tetris game.
Setup Group Tetris: Java version of Tetris game available for play online. Includes top ten high scores.
Swoj.com Tetris: Online version of Tetris puzzle game including high score tables.
Tetris: Tetris game featuring daily highscore lists.
Tetris: Java implementation written Edwin Martin. Features screen buttons, as well as keyboard interface.
Tetris Love: Tetris game reviews, history and links to 10 Tetris web games.