What is "ishar"

Ishar is a series of three role-playing computer games by Silmarils for the PC, Amiga, Atari and Macintosh platforms. They are preceded by Crystals of Arborea, which is sometimes nicknamed Ishar 0.

The games are all played in first-person perspective, with all but Crystals of Arborea allowing the player to direct a group of five characters, each with a selectable race, gender, and class.