Rogue popularized the dungeon crawling computer game dating back from 1980. A favorite on college Unix systems in the early to mid-1980s and created a class of derivatives known collectively as "roguelikes". Rogue inspired Hack, which in turn led to NetHack, Hack's modern-day descendant. Some of the more notable roguelikes include Moria, Angband, and ADOM. The roguelike genre influenced numerous later games, such as Diablo.
"Rogue is generally credited with being the first "graphical" adventure game, and it probably was at least one of the first (Wizardry could probably also make the claim). And its graphics have since been far surpassed by everything from Myst to Doom. But I think Rogue's biggest contribution, and one that still stands out to this day, is that the computer itself generated the adventure in Rogue. Every time you played, you got a new adventure. That's really what made it so popular for all those years in the early eighties."-Glenn Wichman