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(Shapestack screenshot)


Shapestack (or Shapestack T1K) is a puzzle game which runs on an unexpanded 1K ZX81. It should also run on 16K machines, and ZX81 emulators.

The game was originally released in 1997. In the 2002 Minigame Compo it finished 19th out of 62 entries. The first version called Shapestack included a score display, and was released in 2011 by Cronosoft on "1K Games Pack #1".


The game is here as


After 25 years, this version finally fixes the Shift key crash bug. It's also seven bytes smaller.

Last updated on 2023 Jun 8