There are an incredible number of variants of this classic game. We list some of them here; of course, all of the games shown here are games shown here are free and can be played directly online in the browser.

• Reissued:
  gamesbasis


• Not only for kids:
  Tetris at Geolino


• Not only for seniors:
  The 50plus-Games


• Not a fairy tale:
  1001 Games


• At Migano in double pack:
  Tetris Tetris Deluxe


• Very popular:
  Play Tetris


• More than just games:
  Bernhard Gaul's website


• Probably most users:
  TETR.IO


• Special Challenges:
  King of Stackers


• Schedule time for commercials:
  SPIELSPIELE


• Rather not so exciting:
  spielaffe


• There are variants with pre-filled fields:
  Games68


• Apart from the nice 3D look, rather bland:
  Silver Games


• Well...
  t-online calls it Tetra