A growing collection of computer games that are freeware, open source or free to play.

Unlike many other Dungeons & Dragons-inspired games, the emphasis in NetHack is on discovering the detail of the dungeon and not simply killing everything in sight - in fact, killing everything in sight is a good way to die quickly. Each game presents a different landscape - the random number generator provides an essentially unlimited number of variations of the dungeon and its denizens to be discovered by the player in one of a number of characters: you can pick your race, your role, and your gender.

NetHack doesn’t feature any graphics. The game is completely ASCII-based.

No two NetHack games are the same, the entire voyage is randomly generated. And there are hundreds of different kinds of creatures and beings and hundreds of kinds of objects to be found. Magic and spells abound, secrets are there to be found, the gods are there to help you out or punish you, and no matter what you think up, the devteam has probably already thought of it first. There has never been and probably never will be another game as imaginatively detailed and complete as Nethack, graphics or not.