Tetris is a very popular stacker game that originated in the 80's. If you didn't know how to play, now's a good time as any, read on
Go to home page and Click on Start button to Start the game.
Move the tetrominos. You can move them left and right using left and right buttons and you can rotate them in both directions. Up is clockwise.
You can also speed up their fall (known as "Soft Drop" used with the Down button).
You can immediately set it down (known as "Hard Drop" used with the Space bar or Ok button).
You can Pause the game for some time using Enter Key or Puase button in game.
You can Restart your game easily by clicking on Shift Or Clicking on Restart Button.
Complete lines to gain points and raise the level. When a line of blocks is created, the entire line disappears, points are rewarded and the stack is pushed down. The more lines completed at once, the more points gained. Completing the maximum number of lines at once, four, is known as a 'Tetris' and can only be pulled off with the I-tetrimino.
Check upcoming pieces and plan for them. This will become easier the more you play, don't rush yourself.