Hack RUN is a text-based adventure in which the player hacks into the RUN company's servers to dig up incriminating information. They are solicited to do this by an unknown person with unknown motives. The game mimics the old DOS operating system (or a unix shell), and players can display lists of possible commands and try to hack into particular employee's accounts. Players can read employee email, and also open websites on a simulated web-browser. This information can be used to deduce passwords for other users and to continue digging around.