Quadrapassel Alternatives

NullpoMino is an open-source action puzzle game that works on the Java platform.

Race against the clock in a two-minute blitz to clear lines and rack up points before time runs out.

An open source Tetris clone for Android.

An addictive puzzle game inspired by Tetris.

http://alternativeto.net/software/tetrinet/ clone implemented in JavaScript & HTML.

Play Tetris Online. The game that will never get old.

Simple, open-source HTML/JS/CSS version of Tetris built as an exercise.

Tetris Online Poland (TOP) is an online tetris game where you can play tetris with your friends and tetris experts from all over the world.

LTris as a tetris clone: differently shaped blocks are falling down the rectangular playing field...

Tetris is now a battle royale game

An open source Tetris-style puzzle game for up to two players.

Arcade Blocks is a new twist of the classic Tetris.

Fun, fast-paced, competitive puzzle action!