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OTHOther · 1977 · Text adventure

Zork

Zork (Other, 1977) has an official source code release, MITDDC/zork, and 6 other public projects, including an open-source reimplementation. An agent environment already wraps it.

Data checked 2026-10-12 · unbaked registry

ZIL

Projects

MITDDC/zork
Source releaseMDL (MIT Design Language)1,058 starspushed 2022-08-10custom license

Source code for a 1977 version of Zork

MIT Libraries/DDC release of 1977 Zork source

zork
Source releaseC (f2c-derived)650 starspushed 2026-06-30no licenserelease v1.1.0

The DUNGEON (Zork I) source

Wikipedia: open engine AND open game data; source released 1978 by/for Robert M. Supnik / Infocom. Public domain software ports with source code based on the first "Dungeon" version of Zork, are available in various repositories. Also, Inf…

historicalsource/zork
Source releaseZIL/ZAP Infocom source (compile with ZILF/ZAPF) -> Z-machine story fi…297 starspushed 2019-04-15no license

Mainframe Version of Zork (Infocom)

Original Infocom source archived by historicalsource (2019); no license (Zork I-III relicensed MIT in Nov 2025, others not)

itafroma/zork-mdl
Source releaseMDL82 starspushed 2019-04-19no license

Original MDL source code for MIT's version of Zork

Original MDL source mirror

videogamepreservation/zork-fortranarchived
Source releaseFORTRAN44 starspushed 2018-01-31no license

Original Fortran source code for Zork

Original Fortran Dungeon source

historicalsource/zork-german
Source releaseZIL/ZAP Infocom source (compile with ZILF/ZAPF) -> Z-machine story fi…34 starspushed 2019-04-16no license

German-Language Translation of Zork (Unreleased) (Infocom)

Original Infocom source archived by historicalsource (2019); no license (Zork I-III relicensed MIT in Nov 2025, others not)

Portable Executable Zork
ReimplementationC, ZIL, ZAP26 starspushed 2025-04-27custom licenserelease v1.0.0

Portable Executable Zork; notes and code for interactive fiction authoring via Cosmopolitan Libc

development sporadic; status playable

What you need

Free game data is included with at least one project.

Agent environments

Same toolchain

GameMethodYearStarsLast push
MULTZork I: The Great Underground EmpireSource releaseReimplementation19803.0k2025-11-20MULTZork III: The Dungeon MasterSource release19829192025-11-20MULTZork II: The Wizard of FrobozzSource release19818442025-11-20MULTThe Hitchhiker's Guide to the GalaxySource release19841682019-04-19MULTPlanetfallSource release1983662019-04-19MULTWishbringerSource release1985562019-04-19MULTDeadlineSource release19821302019-04-16MULTZork Zero: The Revenge of MegabozSource release19881292019-04-16

More on Other

GameMethodYearStarsLast push
OTHCeleste ClassicSource releaseReimplementation+320154.0k2025-09-21OTHMoriaSource release19834562026-08-19OTHHanabiAgent environment20106682023-02-14OTHColossal Cave AdventureSource releaseReimplementation1976932026-10-07OTHTetrisMatching decompReimplementation+11984492026-07-26OTHLegends of Future PastAI-assisted decomp19921802026-05-17OTHLostStatic recomp552026-09-06OTHDiplomacyAgent environment19591852024-02-18

Found via en.wikipedia.org/wiki/List_of_commercial_video_g, itafroma/zork-mdl, osgameclones.com/

GitHub data checked 2026-10-12. Notes are summaries from the research pass; the project pages are the authority.