Which MIME types are related to file extension ".blorb"?

The .blorb file extension is associated with 2 MIME types:

application/x-glulx, application/x-blorb.

A MIME type is a string that tells browsers and other tools how to handle a particular kind of file.

About .blorb Files

BLORB files are container files that bundle interactive fiction game data with multimedia assets.
They hold story text, images, sounds, and other resources in one package. The format uses a chunk‐based structure similar to IFF.
They are linked with MIME types application/x-glulx and application/x-blorb, which tell the system the file may run on interactive fiction engines like the Glulx virtual machine.

They can be opened with interpreters such as Gargoyle and Frotz that support interactive fiction formats.
According to FilExt.com, BLORB files are essential for bundling multiple game components into a single, manageable file.

Relationship between file extension and MIME type

A file extension is a suffix at the end of a filename that indicates what type of file it is. File extensions help both users and operating systems identify what application should be used to open the file.

File extensions are typically separated from the filename by a period (dot) and consist of 2-4 characters, though they can be longer. For example, in the filename "document.pdf", ".pdf" is the file extension.

File extensions are closely related to MIME types, as they both serve to identify the format of a file. However, while MIME types are used primarily by web browsers and servers, file extensions are used by operating systems and applications.

Associated MIME types

application/x-glulx, application/x-blorb

FAQs

How do I open a .blorb file?

You need an Interactive Fiction (IF) interpreter to open these files. Popular cross-platform options include Gargoyle and Lectrote. These programs act as a virtual machine to play the text adventure game and display the multimedia assets contained within the .blorb file.

What is contained inside a .blorb file?

A .blorb file is a container (resource collection) that bundles the playable game code with multimedia resources. It typically holds a compiled story file (like .ulx or .z8), along with images, sound effects, and music, allowing the entire game to be distributed as a single file.

Can I play .blorb games on a mobile device?

Yes, there are IF interpreters available for mobile operating systems. On iOS, you can use the Frotz app, and on Android, Fabularium is a popular choice. Both support the Blorb format and will display the cover art and play sounds included in the game.

How do I create a .blorb file?

Most authors create these files using the Inform 7 development system. When you include images or sounds in your Inform 7 project and use the "Release" feature, the software automatically packages the assets and the game code into a valid .blorb file.

How can I extract images or audio from a .blorb file?

Since the format follows the IFF (Interchange File Format) standard, you can use specific command-line tools to separate the data. Tools like blorbtool.py (part of the IF archive utilities) can parse the file chunks and export the embedded resources back into standard formats like PNG or OGG.

What MIME type should I use for serving .blorb files?

The standard media type for these files is application/x-blorb. However, if the container is specifically wrapping a Glulx game file, you may also encounter application/x-glulx. Configuring your web server with the correct type ensures browsers offer to download or open the file with the correct interpreter.

Why does my interpreter say the .blorb file is invalid?

This error often occurs if you try to open a Glulx-based Blorb file with an interpreter that only supports the older Z-machine format. Ensure you are using a modern, multi-format interpreter like Gargoyle or Windows Frotz that supports the newer Glulx standard found in many .blorb containers.

General FAQ

What is a MIME type?

A MIME (Multipurpose Internet Mail Extensions) type is a standard that indicates the nature and format of a document, file, or assortment of bytes. MIME types are defined and standardized in IETF's RFC 6838.

MIME types are important because they help browsers and servers understand how to process a file. When a browser receives a file from a server, it uses the MIME type to determine how to display or handle the content, whether it's an image to display, a PDF to open in a viewer, or a video to play.

MIME types consist of a type and a subtype, separated by a slash (e.g., text/html, image/jpeg, application/pdf). Some MIME types also include optional parameters.

How do I find the MIME type for a file?

You can check the file extension or use a file identification tool such as file --mime-type on the command line. Many programming languages also provide libraries to detect MIME types.

Why can one extension have multiple MIME types?

Different programs and historical usage may assign various MIME identifiers to the same file format. Listing them together helps maintain compatibility across tools.