To celebrate the PlayStation's 15th anniversary, preservation site PlayStation Museum will examine a cancelled PS1 game and its development history each month until September 2010. Last month, the site presented postmortems for Pac-Man World 20th Anniversary and Pac-Man Ghost Zone (the latter of which never made it to stores), and it's looking at QAD: Quintessential Art of Destruction for January.

Developed by Cranberry Source around 1997, the Choplifter-inspired 3D game was released for PC and was supposed to receive ports for PS1 and Saturn. QAD is particularly significant due to its publisher, Philips Media Interactive, who had finally given up on its failed CD-i console and finally decided to release titles on rival platforms.

In QAD, players pilot a craft and pick up as many hostages as possible, bringing them back to their base. They can shoot down enemy aliens, purchase weapon/ship upgrades, steal hostages from opponents, and lay traps for opponents. It sounds simple, but PS Museum describes it as "one of the PlayStation's best games never to be released".

Matt Taylor, who was lead developer on the PS1 project, wrote up an in-depth look on the game's development history, including some of the challenges porting the game, the differences between the PS1 and PC editions, the origin of the QAD title, and why QAD never released for PS1 or Saturn.

You can see a video for QAD below, too, and hear what PS Museum calls "the best soundtrack since Wipeout."