The trade demo contains the full game, but with some small differences compared to the final retail game. The most recent files are dated 1999.01.17, and the main file is named with the trade demo catalog number, 80707. The discs came sealed in a sleeve with a sticker, though some discs may have come in a jewelcase without the sleeve.
This disc was sent to reviewers, but there were also at least two earlier review builds sent out on CD-R in the USA. They contain several differences such as steel pipe location and astrology puzzle, as featured in for example PSM's walkthrough. The second of these CD-Rs is dated 1999.01.06, while the PSM review build is even earlier.
1. Front
2. Disc