
Tetris The Grand Master 4 recently got a Steam page and is scheduled for release on April 3rd, priced at $34.99 USD.
It's a miracle this game is coming out. TGM4 was first unveiled back in September 2009 and it appears we are finally at the finish line. If you have even a passing interest in Tetris or Japanese arcade games you really should check this series out. TGM4 will the first time the series has had a western release, not counting decades late Hamster ports.
Steam Page
What makes TGM special? Why would I play this over any other Tetris version?
The TGM series is designed for skillful and speedy play coupled with an addictive grading system that tracks your progress across multiple play throughs. Players can reach certain requirements and take promotional exams to climb in rank. Progressing in the game is not just about clearing lines. The TGM series has a level system where you drop pieces or eliminate lines to gain levels. The goal is to reach level 999. Rounds can take less than 10 minutes to complete if you're fast enough. As you climb up in level the pieces drop faster and faster, until they no longer have any time to drop and will simply appear on the ground. At that point you have a very short window to drag the piece before it locks. You also need to start pre-rotating pieces before they drop so they don't get stuck. The game continues to get even faster, and the truly elite players can unlock invisible Tetris.
Why would I ever want to pre rotate my pieces?



Images shamelessly stolen from PetitPrince’s article.
The TGM series has a better piece randomizer.
The TGM series attempts to give the player a more even distribution of pieces. Pieces given to the player are still random, but the game checks against the previous pieces and decreases the likelyhood of receiving the same piece over and over again. You won't be getting four S or Z shaped pieces in a row like you would on GB or NES Tetris.
The skill ceiling in this series is insane.
Achieving the Grand Master rank is a truly rare feat and probably equivalent to 2-ALL'ing a CAVE game. In the last 20 years of high level TGM3 play, there have only been 24 Grand Masters with classic rotation rules and 32 Grand Masters with world rule rotation rules. Here's what the final promotion exam looks like:

Let's see how high we can climb.
