Rise of the Triad: Dark War

Rise of the Triad: Dark War is a first person shooter developed and published by Apogee Software for MS-DOS in 1994.

Plot
An UN spec ops team is sent to San Nicolas island to eliminate a deadly cult that plans to destroy Los Angeles.

Development
The game was first planned as a sequel to Wolfenstein 3D (and uses an upgraded version of its engine). When id Software decided to cancel the project, Apogee instead decided to continue, changing the title and story to use the assets the team had already produced.

Remake
A modern reimagined version of the game, titled simply Rise of the Triad was developed by Interceptor Entertainment and released in 2013.