楽AI — The Universal Runtime for World Models  |  For Studios & Developers →    Also: Try the Consumer Demo →

Documentation

Everything you need to create games with AI

Getting Started

1

Get the Schema

The .raku file schema defines the game format. Browse the sample games on GitHub to see the format in action, or request SDK access for the full schema.

2

Describe Your Game to AI

Open any AI assistant and describe your game concept. The SDK includes prompt templates and a reference card that prevents common AI mistakes so games work on the first try. Start creating to see details.

3

Validate & Play

Validate your .raku file and play instantly. Try it free →

Engine Feature Guides

Deep dives into the core engine subsystems. Each guide covers architecture, API examples, and performance characteristics.

Spatial Engine

Physics, animation, visual effects, and immersive spatial audio for 3D worlds.

Explore Spatial Engine →

XR Features

Complete XR development platform with natural input, immersive feedback, mixed reality, and cross-headset compatibility.

Explore XR Features →

AI Systems

Intelligent NPC systems, voice interaction, and adaptive gameplay.

Explore AI Systems →

AI Integration

AI platforms generate .raku files using our schema. The full schema specification and API reference are available with SDK access. Start creating to get started.

Supported AI Platforms

Try It Free → for prompts, schema, and validation tools

ChatGPT (OpenAI)

GPT-4 and GPT-4o fully support .raku file generation. Use the SDK-provided prompt templates for best results.

Claude (Anthropic)

Claude Opus and Sonnet models generate syntactically correct .raku files. Excellent schema adherence with SDK-provided prompt templates.

Gemini (Google)

Gemini Pro and Ultra support .raku schema. Best for iterative game design with multi-turn conversations.

GitHub Copilot

VS Code and Visual Studio extensions provide .raku file completion and validation with the SDK installed.

The .raku File Format

Games are defined as .raku files — structured JSON that the runtime executes instantly. Describe your game to an AI assistant, and it generates a complete .raku file ready to play.

Full schema documentation and sample files are available with SDK access. Start creating →

See sample games on GitHub →

API Reference

Comprehensive API covering rendering, physics, audio, AI, XR, networking, animation, and more. Full API documentation is available with SDK access.

Try It Free — Full API Docs Included

Pro Features

Advanced systems available with RakuAI Pro including standalone export, multiplayer, cloud services, and professional tooling.

See All Pro Features →