CTetris, tetris game under terminal, written in c.
# need ncurses
$ make
$ make install
$ tetris # start the game,
$ tetris -h # see cli options
When you are plaing, you can see instructions and score on the right side of game screen.
You can type 'q' or to terminate game.
Typing 'h', 'j', 'k', 'l' letters, you can adjust where and how the Tetriminos fall.
By pressing 'h', 'l', you can slide the falling Tetriminos from side to side.
By pressing 'k', you can rotate the Tetriminos 90 degrees clockwise.
The Soft Drop is performed by pressing the 'j' letter, the Tetrimino will fall much faster.
The Hard Drop is performed by pressing the space bar button to cause the Tetrimino to fall straight down.
I strongly recommend iTerm2 (http://www.iterm2.com/), because Mac OS X native Terminal cannot hide the terminal cursor which is very annoying!.