Kroz

Kroz is a series of Roguelike video games created by Scott Miller for IBM PC compatibles. The first episode in the series, Kingdom of Kroz, was released in 1987 as Apogee Software's first game. It was also published on Big Blue Disk #20. Kroz introduced the scheme of the first episode being free and charging money for additional episodes, a technique which defined the business model for Apogee and was adopted by other MS-DOS shareware publishers.