Tetris
action puzzle game for Commodore 64, 1988
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The aim of Tetris is to get as many points as possible by placing stones
dropping from above on the game area in a way that - if possible - complete
horizontal rows are created. As soon as one or more rows have been completed
by a stone, they disappear and the stones above them drop down.
The player can move the stones sideways while they fall and rotate them in 90°
steps. If a stone was already aligned as desired, it can already be lowered
down to get more points.
Dependent on the number of points the difficulty grad rises, i.e. the speed of
the falling blocks gets faster.
The game ends when there is no space left in the upper two rows for a new
stone.
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Some useful keyboard shortcuts
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[PAUSE] - stop/continue game
[F9] - quick load game state
[F12] - quick save game state (still stored after leaving the site)
[F11] - toggle fullscreen mode
[ScrollLock] - quick switch control ports
[PageDown] - make a screenshot (320x200)