NetHack is a single-player roguelike video game first launched in 1987, featuring ASCII-based graphics. It evolved from an earlier title known as Hack, which itself was influenced by Rogue. Players select a character race and class, then embark on a quest to obtain the Amulet of Yendor within a procedurally generated dungeon.
| DOS | July 28, 1987 |
| PC | December 31, 1993 |
| Linux | December 31, 1993 |