Firefox Browser Add-ons
  • Extensions
  • Themes
    • for Firefox
    • Dictionaries & Language Packs
    • Other Browser Sites
    • Add-ons for Android
Log in
Preview of Twine Dugger

Twine Dugger by Goctionni

For developers and cheaters in Twine games: See the game state, edit variables, track changes, and debug issues.

0 (0 reviews)0 (0 reviews)
Download Firefox and get the extension
Download file

Extension Metadata

Screenshots
View gamestate and track changesMake changes to your stats or other variablesInstantly search through the game's variables and source-code.See changes and review previous game-states.Edit the source-code of games as you're playing.Find specific variables and change them as you pleaseTwineDugger, essential for debugging Twine games (or cheating)
About this extension
For developers and cheaters in Twine games: See the game state, edit variables, track changes, and debug issues.

A browser extension to give you super powers in text-adventures and interactive fiction. Twine Dugger is a suite of devtools designed for developers looking to debug and test, and players looking to cheat or manipulate their game experience.

Built to support the major story formats, SugarCube and Harlowe, Twine Dugger lets you inspect, track, and alter the state of compatible Twine games on the fly. Adjust your in-game stats, relationships, money, or gold during testing, or lock complex states to see how your narrative paths adapt.

Note for Harlowe games: Because Harlowe's API isn't normally accessible through JavaScript, Twine Dugger requires Harlowe games to use Chapel’s Unofficial Custom Macro Framework.

Key Features
  • Full Control Over Game-State:
  • See Variables: View the current game state and navigate down into any nested variable.
  • Track Changed Values: Monitor updates and track variable changes live.
  • Update Values: Edit active variables on the fly.
  • Lock Variables: Freeze specific values during gameplay or testing.
  • Delete & Duplicate Values: Cleanly modify data or duplicate variables.
  • Create Filters: Easily keep track of only relevant variables.
  • Deep Search Engine: Instantly search for deeply nested variables by name or value, or find the passages containing your search query.
  • Inspect Source Code: View the game's source code and make changes without leaving the game.

Developer & Contributors

Twine Dugger is developed by Goctionni, creator of previous Chrome extensions SugarCube Hacker and Reddit Inbox Revamp; and contributor to the Twee 3 Language Tools VS Code extension.

Massive credit and thanks to the contributors who have built and shaped this tool:
  • SjoerdHekking — Added filtering to Diff Log, Add, Delete & Duplicate Variables, Initial Context Menu
  • Czer323 — Various performance improvements (Virtualizes lists, Debounce), more flexible filters, Overview in settings for filtered paths and locked paths.

Open Source & Free Forever

Twine Dugger is fully open-source under the MIT License. It is completely free to use, contains no ads, and will remain free forever.
Rated 0 by 0 reviewers
Log in to rate this extension
There are no ratings yet

Star rating saved

5
0
4
0
3
0
2
0
1
0
No reviews yet
Permissions and data

Required permissions:

  • Extend developer tools to access your data in open tabs

Optional permissions:

  • Access your data for all websites

Data collection:

  • The developer says this extension doesn't require data collection.
Learn more
More information
Add-on Links
  • Homepage
  • Support site
  • Support Email
  • Copy add-on ID
Version
1.5.1
Size
654.95 KB
Last updated
8 days ago (Jun 7, 2026)
Related Categories
  • Web Development
  • Games & Entertainment
License
MIT License
Version History
  • See all versions
Add to collection
Report this add-on
Go to Mozilla's homepage

Add-ons

  • About
  • Firefox Add-ons Blog
  • Extension Workshop
  • Developer Hub
  • Developer Policies
  • Community Blog
  • Forum
  • Report a bug
  • Review Guide

Browsers

  • Desktop
  • Mobile
  • Enterprise

Products

  • Browsers
  • VPN
  • Relay
  • Monitor
  • Pocket
  • Bluesky (@firefox.com)
  • Instagram (Firefox)
  • YouTube (firefoxchannel)
  • Privacy
  • Cookies
  • Legal

Except where otherwise noted, content on this site is licensed under the Creative Commons Attribution Share-Alike License v3.0 or any later version.