Rogue is a
dungeon crawling video game first developed by Michael Toy and Glenn Wichman around 1980. It was a favorite on college
Unix systems in the early to mid-1980s, in part due to the
procedural generation of game content.
Rogue popularized dungeon crawling as a video game trope, leading others to develop a class of derivatives known collectively as "
roguelikes". For example, it directly inspired
Hack, which in turn led to
NetHack. Roguelikes have since influenced commercial games outside the genre, such as
Diablo.