
Gertrude's Puzzles
Platform not specified · North America*
*
Platform not specified · North America*
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Commodore 64* · Region not specified
*
Platform not specified · Region not specified

DOS* · Region not specified
*
Commodore 64* · Region not specified
*
Platform not specified · Region not specified

Platform not specified · Region not specified

MSX* · Europe*
*
Platform not specified · Region not specified

Amstrad CPC* · Region not specified
*
Platform not specified · Europe*
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ZX Spectrum* · Region not specified
*
SG-1000* · Japan*
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SG-1000* · Taiwan*
*Platform not specified · Region not specified

Platform not specified · Region not specified

Platform not specified · Region not specified

Atari 2600* · USA*
*
Platform not specified · Region not specified

Platform not specified · Region not specified

Arcade* · Region not specified
*
Platform not specified · Region not specified
*
DOS* · Region not specified
*Platform not specified · Region not specified

Amstrad CPC* · Region not specified
*
Platform not specified · Region not specified

Platform not specified · Region not specified

Commodore 64* · Region not specified
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Platform not specified · Europe*
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Platform not specified · North America*
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Commodore 64* · Region not specified
*
Platform not specified · Region not specified
Platform not specified · Region not specified

Platform not specified · Region not specified

Platform not specified · Region not specified

Commodore 64* · Region not specified
*
Amstrad CPC* · Region not specified
*
MSX* · Region not specified
*
Commodore VIC-20* · Region not specified
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Arcade* · Region not specified
*
Platform not specified · Region not specified

ColecoVision* · Europe*
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ColecoVision* · USA*
*
Platform not specified · Region not specified

Atari 8-bit* · Region not specified
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Commodore 64* · Region not specified
*
Platform not specified · Region not specified

Platform not specified · Region not specified

DOS* · Region not specified
*
Platform not specified · Region not specified

Mac OS* · Region not specified
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Platform not specified · Region not specified

Commodore 64* · Region not specified
*
Platform not specified · Region not specified
Platform not specified · Region not specified

ColecoVision* · USA*
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Atari 8-bit* · Region not specified
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ColecoVision* · Region not specified
*
Platform not specified · Region not specified
Platform not specified · Region not specified
* Provisional data