From Sega Retro
Powerslave, known as Exhumed in Europe and Seireki 1999: Pharaoh no Fukkatsu (西暦１９９９ ファラオの復活) in Japan, is a first person shooter game developed by Lobotomy Software. It was ported to the Sega Saturn in 1996.
Slave Driver Game Engine
The original version appeared on the PC as a Build engine game and featured many mechanics, levels and content that varied differently. This includes linear level design, in-game speech from the main character, and stock lives that once they've run out, the game ends for the player. When the game was brought to the Sega Saturn and PlayStation, the game was rebuilt from the ground up using a proprietary engine called Slave Driver which was able to render more complex levels, including rooms above other rooms, which was not possible on the Build engine. It also went through a major gameplay re-design thanks to the stronger hardware. The Slave Driver engine would become a framework for PC to console ports by Lobotomy Software including Duke Nukem 3D and Quake.
US version of Powerslave contains a mini game called Death Tank that can be accessed if you collect all 23 dolls hidden in the game. The mini-game supports up to 6 players, which was increased up to 7 players in it's sequel, Death Tank Zwei, which can be found in Duke Nukem 3D.
Powerslave makes use of the Saturn's internal battery back-up as well as the Saturn Backup Memory to save data for progress. To load and save data from the Ram Cart, the save file must be created on the internal battery back-up first, then moved over via the Memory Manager.
Executive Producers: Brian McNeely, Paul Lange