https://www.cs.unm.edu/~dlchao/flake/doom/chi/chi.html

This paper explores a novel interface to a system administration task. Instead of creating an interface de novo for the task, the author modified a popular computer game, Doom, to perform useful work. The game was chosen for its appeal to the target audience of system administrators.

The Doom process manager (PSDoom) is a modification of the game Doom [8] that displays representations of the processes running on a machine. Rather than using standard text-mode UNIX tools to view and manipulate processes, one surveys and shoots at a room full of bloodthirsty mutants, as shown in Figure 1. When a user starts PSDoom, currently running processes are instantiated as "process monsters" in a single room in a "dungeon." These monsters have their associated process' name and id printed on them. The program periodically polls the operating system to add newly-created processes to the game. The user may choose to view the processes from a balcony above the room, as shown in Figure 2, or to enter the room to interact with them. If the user inflicts a wound upon a process monster, the corresponding process' priority is lowered to give it fewer CPU cycles. When the monster accumulates enough damage and is killed, the associated process is also killed.