Tetris – the first ever Tetris game create in 1984 for Russian computer called Electronika 60, and then also available for IMB PC.
Tetris was created by Alexey Pazhitnovin, and was not only made a notoriously addicting puzzle game, he invented a whole new computer and videogame genre. This genre has seen tons of Tetris sequels and clones, including Tetris Attack for the Super Nintendo.
The game begins with one of seven differently shaped blocks falling down the playfield. This block is followed by another, and another. Each of the seven block shapes is composed of four small squares.
You manipulate these blocks, which fall one at a time, by moving them left and right and rotating them as they descend. One randomly selected block after another falls down the screen, and you must arrange these blocks to prevent them from stacking up to the top of the play field.
Every time you fill in an unbroken horizontal line across the play field, that line disappears, clearing the way for more blocks. With enough practice, you will figure out how to fill in double, triple, and quadruple lines with the drop of a single block, maximizing your score. By not allowing the blocks to reach the top of the screen, you will reach higher and higher levels, meaning an increase in the rate at which the blocks fall.
No download is available.