Working title for the game was Project X. Ace magazine ran a competition in cooperation with Mindscape for their readers to name the game in issue 35.
Although the game box and the manual claims this game to be fully STe enhanced we didn't fid any enhancements at all.
The Ultimate Captive Guide investigated the following: An attempt was made to make the Atari version in stereo, but a problem appeared and the programmer had to force the audio to be mono for release of version 1.0, hoping to solve it for the next release. The existing binary of Captive 1.0 can be manipulated to successfully turn on stereo sounds, but the sound samples are then played twice faster than they should. It is assumed that this is the problem the programmer had to fix.
In Captive 1.2, the code that was meant to support stereo sounds has been completely removed.
Source: Ultimate Captive guide at captive.atari.org
Features digitized sound fx at 7.5KHz