Computer software, particularly games, are sometimes cancelled quite far into their development. Occasionally they are demonstrated to the press so that previews can be written but are never completed or published. "" had an extensive preview written in the magazine "PC Paradox" in 1999, including numerous screenshots, which generated a lot of interest in the project. However, it was cancelled the following year. Due to continued interest in a game, some are eventually made available in their unfinished state. "Combat 2", the sequel to the 1977 Atari VCS-bundled game "Combat", was never completed, but many years later, at the 2001 Classic Gaming Expo, 200 copies of the unfinished game were sold after a company created a box and manual.