Atlas

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Atlas helps you work inside Unity or through a connected AI assistant with Behavior Designer Pro, State Designer, and Ultimate Character Controller Version 3. Ask a product question, explain an existing setup, plan a feature, or generate and revise C# source for the product you own.

The Atlas product header and an illustrative question and answer.

Start here

New to Atlas? Follow Quick start to connect and create a small, testable task. If Atlas is not installed, begin with Installation and updates.

I want to… Read
Connect my account or verify a purchase Account and product access
Set up local Codex, Claude Code, or an API key Models and providers
Connect my existing AI assistant or use Atlas skills AI assistants and skills
Understand the window The Atlas window
Explain a graph or diagnose a problem Asking questions and Providing context
Design a feature before writing code Planning and package builds
Create or change scripts Generating and applying code and Modify, review, and test
Apply my project’s conventions Project instructions
Understand what leaves my computer Privacy and project data
Fix a connection or request problem Troubleshooting
Look up a command Commands and shortcuts

Product guides

Open Product Guides for the Behavior Designer Pro, State Designer, and Ultimate Character Controller walkthroughs.

Atlas access is verified for each product. Installing a supported product and owning it are separate requirements. Model choices also depend on your client, account, and configured provider.

A useful working loop

  1. Explain the outcome you want and attach the relevant context.
  2. Ask for an explanation or plan when the behavior is uncertain.
  3. Review the proposed source and its destination before applying it.
  4. Let Unity compile, then test the behavior in a small scene or graph.
  5. Return the exact error or unexpected result in the same chat.

Atlas validates generated source, but a valid file is not proof that a gameplay feature works. You still assign references, configure graphs or abilities, and test the result. Generated node source does not automatically assemble an entire behavior tree or state machine.

The examples in this manual illustrate the workflow; model responses and available model names will vary. Download Atlas from the Atlas product page.