NullpoMino - NullpoMino is an open-source action puzzle game that works on the Java platform.
Good Old Tetris - Play Tetris Online. The game that will never get old.
Tetrust - Open-source, terminal-based Tetris game made with Rust.
Word Tetris - Tetris with words
Blockinger - An open source Tetris clone for Android.
Tetris Blitz - Race against the clock in a two-minute blitz to clear lines and rack up points before time runs out.