Inform

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File Formats > Electronic File Formats > Interactive Fiction > Inform
File Format
Name Inform
Ontology
Extension(s) .inf,.i7,.i6

Contents

Description

Inform is an authoring system for Interactive Fiction. It is written and maintained by Graham Nelson, and was first introduced in 1993. It can compile to the Z-code story file format, and newer versions can also compile to the Glulx file format. Inform source code files are standard text files. In versions prior to Inform 7, the language is a traditional programming language. In Inform 7, a new "natural language" was introduced, allowing games to be written using simple English sentences.

Extensions

  • .inf: the standard extension for an Inform source code file in a version earlier than Inform 7.
  • .i7: The standard file extension for an Inform 7 source file.
  • .i6: Sometimes seen to refer to Inform 6 files as opposed to Inform 7 files, usually in projects mixing both Inform 7 and Inform 6 code, and intermediate files generated by the Inform 7 natural language parser.

Software

  • Inform 6 (cross-platform, website)
  • Inform 7 (cross-platform, website)

Earlier version of Inform can be downloaded from the Interactive Fiction Archive. For software needed to play games created by Inform, see Z-code and Glulx.

Sample Files

Inform 6

Inform 7

Resources

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