Rogue!

NetHack is a single player dungeon exploration game that runs on a wide variety of computer systems, with a variety of graphical and text interfaces all using the same game engine. 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. »

Dungeon Crawl Stone Soup is an open-source, single-player, role-playing roguelike game of exploration and treasure-hunting in dungeons filled with dangerous and unfriendly monsters in a quest to rescue the mystifyingly fabulous Orb of Zot.

Brogue is a Roguelike game for Mac OS X, Windows and Linux by Brian Walker.

Rogue Castle is a roguelike platformer with fast paced action.Somewhere on earth, monsters have secretly invaded castles, and nested in there. You are a knight with mastered ninja skills, you have to explore the areas of castles, collect treasures, fight fierce monsters, overcome deadly traps and finally defeat the Monster Creator.

Descend into the depths of the dungeon until you reach the foul daemon known as "He who the author cannot spell consistently", or, Baezl'bub. When you have slain Baezl'bub in heroic combat, or, if Baezl'bub dies in any way, retrieve his black heart and bring it to the surface world.

Rogue Touch is based on the classic dungeon crawler Rogue. This famous turn based adventure-RPG has been re-designed from the ground up for easy touch screen gaming, no crazy keyboard commands or dozens of hard to learn gestures here! Rogue Touch is so simple a child can play, but still offers deeply strategic gameplay and literally hundreds of hours of fun and replay value!

100 Rogues is a dungeon crawling fantasy adventure available on iOS for iPhone, iPod Touch and iPad. It features vivid pixel art, charming characters, and is a quick, pick-up-and-play challenge.

Angband is a free, single-player dungeon exploration game. You play an adventurer seeking riches, fighting monsters, and preparing for a final battle with Morgoth, the Lord of Darkness.

Moria is a roguelike computer game based heavily on J. R. R. Tolkien's novel The Lord of the Rings. The game's objective is to kill a Balrog, presumably Durin's Bane, deep within the Mines of Moria. A later port of Moria called Umoria (UNIX Moria) inspired the Angband roguelike game.

Explore the ancient ruins, survive to the bottom level and save the world. Every time you play the game will create a new dungeon full of challenges and surprises for you in 5 different environments populated with monsters and ancient magical artifacts.