Zork I: The Great Underground Empire
(Personal Software package ("Zork"))
In 1980, Personal Software put out the first Apple II version of Zork I, in a
windowed box with the manual cover visible from the front. This version had the game
title in black letters instead of white, and was considerably smaller than the TRS-80
manual. The only one I've ever seen complete was sold in an eBay auction for $500.
(Wish I'd bid higher.)
Curiously, I also saw a TRS-80 version with a small manual on eBay a few weeks back.
The Apple II version has loading instructions specific to that platform, so it's a
safe assumption that two versions of the smaller manual were printed.
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