Hextris is described as 'An addictive puzzle game inspired by Tetris'. There are more than 10 games similar to Hextris for a variety of platforms, including Android, iPhone, Windows, iPad and Android Tablet. The best alternative is Puyo Puyo Champions. It's not free, so if you're looking for a free alternative, you could try Tetris Blitz or TetraBlaster. Other Hextris like games are Cuyo (Free, Open Source), OpenBlok (Free, Open Source), 1010! Klooni (Free, Open Source) and T^3 (Free, Open Source).
TetraBlaster is the classic block game with a twist. Blast the blocks to get the shapes you need to score big and unlock new custom themes. TetraBlaster is a game that offers the nostalgia of the original Tetris gameplay.
Cuyo is a Tetris-style puzzle game for up to two players. The player controls falling blocks of various types which change with each level. For example, in the first level, the player has to connect differently colored cartoon faces to each other.
1010! Klooni is a free, libre and open source klooni of the original minimalistic puzzle game by Gram Games. Fill Up the Board: Drag the pieces on the board and try to clear as many strips as you can! Beware though, it is not that easy o:)
Play the popular tetris arcade game on your Mac. This classic puzzle game is easy and fun to play and suitable for kids of all ages. Use the arrow keys on your keyboard to move the and rotate the blocks.