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Jev plays Zork

An experiment where Jev plays Zork I: every turn Jericho supplies the valid actions and Jev answers one Choice of which command to type, with confidence bars, an anti-loop memory of the last 8 turns, a JSONL log and a French replay dashboard.
See highlightsOpen github.com
Stars
1
Language
Python
License
MIT
Reading time
3 min
Published by
Community
Author
resadan-dev
Last verified
Oct 2026
Tagscommunitycatalog-importlogicrwzorktext-adventureagent
Works forJev for ClassificationJev for Realtime control
Used inJev for Gaming
Languages
Python
Platforms
CLIBrowser
Capabilities
Open sourceRequires API key

Highlights

  • Each turn asks three questions in one request: a Choice over the valid actions (criteria keys, at most 255), a noul danger check and an intent Choice.
  • The last 8 turns go into the state; an action already tried in the same world state has its probability halved on every retry.
  • Jev only judges: memory, anti-loop and the played command stay in code, and departures from Jev's opinion are flagged in terminal, log and replay.
  • Three parts: a terminal harness writing JSONL, replay/index.html with map and confidence curve, and video/render_video.py producing MP4 and GIF.
  • State is written in English because Jev reads it better; the game dashboard, replay player and videos are French.

Quickstart

bash
play install
# in PowerShell: .\play install

Watch out

Grounded in the truncated repo README and GitHub metadata reviewed on 2026-10-15; the README is cut off in the setup section, the project is a single-author MIT experiment with no benchmarks, Jericho must be compiled with gcc and make, and the Zork ROM is downloaded at setup because it is not versioned.

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