From Hard Drop - Tetris Wiki
|Developer(s)||Blue Planet Software|
|Publisher(s)||Blue Planet Software|
|Release Date(s)||Thu Feb 22, 2007|
|Platform(s)|| Windows 2000/XP/Vista|
Mac OSX 10.3 or higher
|Playfield dimensions||10w x 20h visible|
|Hold piece||Yes, with IHS|
Tetris Zone is an official Tetris game for the Macintosh platform and was released as an Universal Binary (for Intel- and PPC-Macs). A Windows version is also available.
It was one of the first games that attempted to limit the effects of T-spins on the game, by eliminating the recognition of T-spins triples. However, singles and doubles that use the TST twist are still recognised.