Dart implementation of the Infocom Z-Machine.
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Zart - Dart Implementation of Infocom Z-Machine

Some of my most memorable early gaming experiences where Infocom interactive fiction games.

This project is a labor of love. I'll start with z-machine v3 and see where it goes...

Playing the Mini-Zork Game

To run the game, run the ZConsole.dart app, either from the VM in shell, or from the Dart Editor (user-input works in the Dart Editor console too).

There is a web-based version here as well (Chrome or Dartium only, for now):


The web version uses the Buckshot UI library:


Status - Playable for V3 Games

Minizork is included with the source and is playable.

All the V3 opcodes should be implemented (except load and restore... soon).

Copyright (c) 1988 Infocom, Inc. All rights reserved.
ZORK is a registered trademark of Infocom, Inc.
Release 34 / Serial number 871124

West of House
You are standing in an open field west of a white house, with a 
boarded front door. You could circle the house to the north or south.
There is a small mailbox here.



Next Steps

  • Work on some later machine versions (V5, V8) etc.
  • Load/Save game options.


There is a VERY basic runtime debugger included. To enter it, type /! at any prompt. Doing so will drop you into a simple REPL.

Debug Commands

  • locals - dumps out locals for the current routine.
  • globals - dumps out globals.
  • dictionary - dumps out the game dictionary.
  • move x to y - moves object #x to object #y
  • object x - dumps info regarding object #x.
  • enable (tracing|verbose) - enables tracing or verbose debug mode.
  • disable (tracing|verbose) - disables tracing or verbose debug mode.
  • header - dumps header information
  • q - leave debug mode and return to game.
  • n or Enter - advance to the next instruction.

You can also enable tracing and/or verbose with:

Debugger.enableDebug = true;  //toggles all debug options
Debugger.enableTrace = true;
Debugger.enableVerbose = true;

Reference Material


Adam Smith's RNG lib "DRandom" (found here: https://github.com/financeCoding/DRandom/blob/master/DRandom.dart)


Source Code: Apache 2.0 (see LICENSE file)

Game files include are covered under their own applicable copyrights and licensing.