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Csabo's 1K Tetris
Title:Csabo's 1K Tetris
Release Date:
Machine:PAL & NTSC
Game ending type:No end (no highscore)
 Play Online!
Coded by:P., Csaba (Csabo)
Notes:This game is only 1024 bytes long. Submitted for the 2002 1K GameCompo.
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User Rating: 8.6/10 (11 votes)
Csabo's 1K Tetris Screenshot

Appeared On Compilations
Club Info 71

2002 MiniGame Compo1K Game46.86 / 10

Csabo's 1K Tetris

A game in 1024 bytes for the Commodore C16 or Plus/4.
Written by Csabo/LOD.
Finished 2002.09.15 - submitted for the 2002 1K GameCompo.


This is an implementation of the classic Tetris game for
the C16/Plus4. It has a unique feature that allows the
player to adjust the width of the 'pit'.


Cursor Left: move current piece left.
Cursor Right: move current piece right.
Cursor Up: rotate current piece counter-clockwise.
Cursor Down: drop current piece.

'1': make the pit width wider.
'2': make the pit width narrower.
Warning! Changing the width of the pit starts a new game.

(after game over) Press Space to start a new game.


Any Commodore C16 or Plus/4 (or an emulator of course).
The game works with both PAL and NTSC systems!
This software runs fine on all known Plus/4 emulators.

Technical details:

It's classic Tetris, what can I say? Okay, one note:
While the piece is dropping, it can still be moved.

Try the game with a wider or narrower pit for fun.

The development time was lots and lots of afternoons and
evenings spread over about 3 months. The code is very
optimised, and it went through lots of testing. This game
is believed to be bug-free.


Use 'POKE 4843, [speed]' to adjust game speed (e.g. if you
find it too difficult or too easy.) Lower numbers mean a
faster (and harder) game. The default speed is 15.

Use 'POKE 4653, [speed]' to adjust how responsive the
keyboard is. The default value is 8, which I found to be
comfortable. Lower values mean the keys repeat faster.

Use 'POKE 4826, 169 : POKE 4827, 62' for a cheat. This makes the
game kind of pointless.

Make sure to use the above pokes before starting the game,
since this game cannot be successfully restarted after reset.


Download the source code here (10Kb)

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