A z4 file extension is related to the Infocom game module, used by Z-machine. Extremely uncommon file format.

There is one other file type using
the Z4 file extension!

z4 icon.z4 - ZoneAlarm Mailsafe renamed file

Detailed description

Software that open z4 file

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Z4 file extension - Infocom game module for Z-machine version 4

What is z4 file? How to open z4 files?

File type specification:

Game file type icon Game file type

The z4 file extension is associated with Infocom.

The z4 files contain Z-machine instructions (called story files, or Z-code files). Z-code files usually have names ending in .z1, .z2, .z3, .z4, .z5, .z6, .z7 or .z8 (and occasionally .dat), where the number is the version number of the Z-machine on which the file is intended to be run.

Types 1, 2, 4, 6, and 7 are extremely uncommon; most Z-machine data files are types 3, 5, or 8. Type 6 provides some graphics support.

Interpreters for Z-code files are available on a wide variety of platforms - on various old machines (such as the Apple II, TRS-80 and Sinclair), portable machines (such as Palm OS devices and the Nintendo Game Boy) and most modern platforms.

This z4 file type entry was marked as obsolete and no longer supported file format.

This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.

Updated: May 28, 2019

The default software associated to open z4 file:

Frotz picture or screenshot

SourceForge.net logoFrotz  Microsoft Windows software

Company or developer:

Frotz is an interpreter for Infocom games and other Z-machine games. It complies with standard 1.0 of Graham Nelson's specification. It was written by Stefan Jokisch in 1995-1997

Help how to open:

Use compatible tools to work with *.z4 files.

How to convert:

Probably can be exported to other formats.

List of software applications associated to the .z4 file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open z4 file, edit z4 file, convert z4 file, view z4 file, play z4 file etc. (if exist software for corresponding action in File-Extensions.org's database).

Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting z4 files.

Software that open z4 file - Infocom game module for Z-machine version 4

Programs supporting the exension z4 on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about Frotz for open z4 file action.

Microsoft Windows:

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Z3 file extension

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