Export immutable runtime releases

Publishing turns the current editable game into an immutable runtime release. Use this file when a host or deployment needs the exact backend behavior of one published version. Use a .vf project file instead when the recipient needs to continue editing.

Open Publish & API, activate the release, and select Runtime bundle to download it:

last-train-to-the-moon-r1.vifu-game.json

The release number identifies the published revision. Editing the project does not change an existing bundle; publish another release to produce a new runtime artifact.

What the bundle contains

A .vifu-game.json bundle contains:

• the release and project identifiers;
• a content hash;
• the compiled gameplay graph;
• the public list of required host capabilities and resources; and
• backend resource versions pinned by that release.

Together these define the state changes, Agent effects, choices, conditions, host actions, and endings executed by the Vifu Game Runtime.

What remains separate

A runtime bundle does not contain:

• editable Canvas layout or Short Drama source;
• managed image, audio, or video bytes;
• provider credentials or API keys;
• users, sessions, logs, or analytics; or
• a required web or native presentation.

Engine-specific object and asset mappings are exported separately through Host bindings. The runtime resolves provider credentials from the target Vifu deployment when an Agent effect runs.

Choose the correct artifact

The runtime bundle is compiled output and cannot replace the editable project. Read Project files for .vf export and import.