Tetris (Spectrum HoloByte)

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Tetris
Spectrum Holobyte Tetris Title Screen.png
Developer(s) Spectrum HoloByte
Publisher(s) Spectrum HoloByte
Release date(s) 27 January 1988 (UK)
29 January 1988 (USA)
Platform(s) IBM PC
Gameplay Info
Next pieces 1
Playfield dimensions 10 × 20
Hold piece No
Hard drop Hard only
Rotation system Identical to Sega Rotation, except the vertical state of the S tetromino is shifted 1 space right
Spectrum Holobyte Tetris Main Menu.png Spectrum Holobyte Tetris Level 0.png

The first Tetris game developed and released by Spectrum HoloByte, and the first version to be released commercially.

There are two versions of the game; the revised version has the plane on the title screen removed (at the request of Elorg) and the military-themed backgrounds replaced (at the request of Pajitnov). The revised version was also featured on Tetris Gold.

Timing

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Timing is based on video frames, which are approximately 1/70 of a second.

Scoring

Placing a piece awards score according to the following formula:

  • points = 4 + (2 * level) + row number of top of piece

The bottom row is number 1. If the piece was dropped manually, the position before dropping is used, so for a high score the player should drop as soon as possible.

If piece preview is enabled at the time a piece is placed, a 25% penalty is assessed: (both divisions are rounded down)

  • points with preview on = floor(points / 2) + floor(points / 4)

No additional points are awarded for line clears.

See also