The Apple II original: what shipped in 1985
The floppy-disk release that started it all, and the machine it was built to run on before anything else.
The launch platform
Where in the World Is Carmen Sandiego? shipped from Brøderbund on April 23, 1985, built first and foremost for the Apple II line. The box specified any Apple II with 64K of memory — modest even by 1985 standards, which is part of why the game ran in so many classrooms that were still getting by on II+ and IIe hardware bought years earlier. It arrived on floppy disk, as virtually everything for the platform did; Brøderbund and the original design team of Gene Portwood, Lauren Elliott and Dane Bigham built the whole detective loop around that format's limits.
What made it into the box
Alongside the disk and manual, every copy included a genuine reference book, The World Almanac and Book of Facts, published by Pharos Books. That inclusion is the more famous story on its own, covered in full at The World Almanac tie-in — the short version is that the almanac was both a research tool for cracking the destination clues and a quiet form of copy protection, since a pirated disk without the book left a player stuck.
Not alone for long
The Apple II release wasn't the only one out of the gate. MS-DOS carried the game the same year, and a Commodore 64 conversion followed in 1986. Both are covered in more detail alongside the rest of the early computer ports. What's worth noting here is simply that the Apple II version is the one the design was built around first: three witness locations per city, a fixed suspect pool, and five ranks running up to Ace Detective, all sized to fit on the floppies of the day.
Finding it now
The original Apple II floppies are preserved and playable today through Apple II archiving projects and the Internet Archive's software library, run through in-browser emulation rather than original hardware. See How the classic games survive today for how that emulation works and how this site uses the same underlying approach for the MS-DOS release.