Tetris is a falling puzzle piece game that everybody knows - different shaped pieces fall from the top of the game display to the bottom with the goal being to complete a solid row of blocks across the playing area.
Once a row is completed that row will vanish awarding points. Since this is the only way to remove blocks, you need to form solid rows as quickly as possible. If you are unsuccessful, the game will end when the pieces stack up to the top of the playing area.
Tetris allows you to manipulate a puzzle piece only when it is falling - rotate it, move it horizontally, or perform a quick drop to the bottom - the choice is yours. This remake is of course crafted after the original Tetris by Alexy Pajitnov.
During installation, they mention their WinLock program, but it is not installed.