NetHack is described as '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' and is a role-playing game in the games category. There are more than 25 games similar to NetHack for a variety of platforms, including Windows, Mac, Linux, Android and Steam apps. The best NetHack alternative is Shattered Pixel Dungeon, which is both free and Open Source. Other NetHack like games are Cataclysm: Dark Days Ahead, Pixel Dungeon, Ancient Domains of Mystery and Dungeon Crawl Stone Soup.