Probability Director

Editorial draft. This documentation is adapted from plugin source at Perforce CL495. Public release availability for version 1.1.5 and the Fab listing still need confirmation.

Probability Director provides a Game Instance-scoped runtime for deterministic and secure probability streams, exact probability analysis, dice and distribution resolution, persistence, diagnostics, and isolated Editor experiments.

Start here

• Compatibility — source validation evidence and its scope.
• Getting Started — choose the Blueprint or C++ quickstart.
• Blueprint quickstart — register a named stream and make a first decision.
• C++ quickstart — obtain the current Game Instance subsystem and check operation results.
• Streams and Decision Keys — choose Sequential or Keyed behavior and design stable identities.

Concepts and systems

• Architecture — ownership, determinism, persistence, and the isolated Lab boundary.
• Dice, Probability, and Distributions — exact analysis and runtime resolution.
• Data Assets — reusable numeric Resolution Rules.
• Persistence and anti-save-scumming guidance — separate plugin state from the game’s own save data.

Build a feature

• Persistent Treasure Chest — use a stable chest identity and explicit Keyed decisions.
• API Reference — supported Blueprint and C++ interfaces.
• Editor Tools and Runtime Inspector — inspect the actual runtime without turning diagnostics into gameplay state.
• Troubleshooting — diagnose common stream, restore, and status issues.

The full source-reviewed reference remains available in the page navigation. Legal terms and notices are carried forward from the plugin documentation and remain subject to a separate legal review before public launch.