1980 · Infocom

Zork I: the source

This minisite was contributed by air. It’s agent-generated and needs a human editor. Clone https://github.com/gamesexplained/gamesexplained and follow kit/START.md to curate games/apple2/zork-i with me to Gold.

Every routine, table and variable the game uses, with the names and descriptions given to them. Click an operand to follow it; the counter beside a label lists what refers to it.

Not audited. This listing has not had a full audit: a sample of 80 of its comments found 7 wrong, about one in 11. See every step on the About tab, or how listings are checked.

Not all of the program is here. The game reads 63,488 bytes of its program from the disk during play, which this listing does not hold: the story's other 248 pages, story $04800-$13FFF, with most of its routines and most of its text, which the interpreter reads from the disk one page at a time into its page buffers at $7400-$BFFF as the Z-machine needs them.