ULTRA99

ULTRA99 (or ULTRA-99) is a hacking simulation game with ambiguous rules and instructions. The game begins with a required password, which you have to read the enclosed docs carefully to find (it's 416515) and then it's up to you to figure out how to get hacking. I am no hacker but I don't think this is really how it works. But if you enjoy text-mode games where you need to figure out what to do next with very little clues, this may be right up your alley. See the "Instructions" section for some useful info to help get started.