NetHack has always been considered the longest running open-source game around. Its rouge-like gameplay keeps players and fans coming back for more. It goes back to the classics, bringing back the classic turn-based RPG genre.
Well, ddcc requested a portable version of it, so I decided to take a look. The result is Portable NetHack. With this you can play NetHack directly from your USB drive without having to worry about leaving anything behind in the registry. All settings are saved locally so you don't have to worry about loosing any saved data.