🎮 GDC 2026 Open Beta — Pro features FREE through June 30, 2026 | Try It Now →
GDC 2026 Open Beta — Pro FREE through June 30

Describe Any Game. Play It Instantly.

Tell ChatGPT, Claude, or Gemini what game you want. Get a real playable executable in under 60 seconds. Zero coding. 2,718 API functions. On-device AI. 5 granted patents.

Windows, macOS, Linux • 19 MB • No account required • All platforms →

Try It in 60 Seconds

Three steps. No account. Everything is push-button from the launcher.

1

Download & Launch

Download the runtime and run it. The launcher opens with a dark-themed game hub.

2

Pick a Template & Send to AI

Go to the Create tab. Choose from 8 built-in game templates (or write your own). Click “Open in AI Assistant” — it copies the prompt and opens ChatGPT, Claude, or Gemini.

3

Save & Play

Save the AI’s response as a .raku file. It appears in your My Games library. Double-click to play — launches in under 1 second.

Built-In Game Templates

The launcher includes these ready-to-go templates. Pick one and click send:

🚀 Space Shooter 🧙 Roguelike Dungeon 🧩 Puzzle Platformer 🏰 Tower Defense 🏎 Racing Game 🎵 Rhythm Game 🌿 Survival Crafting ✏️ Custom Prompt

Or copy this prompt manually:

Read the Raku game engine schema at https://rakuai.com/schema.json first. Then create a .raku game file for: a top-down roguelike arena where you play a sorcerer fighting through dungeon rooms, collecting spell upgrades between rooms, with a 4-phase boss fight at the end. Include the ai_disclosure section. Output only the raw JSON, no markdown code fences.

Want more control? Use the LLM Guide for advanced prompts and the runtime format reference for full engine access.

How It Works

1

Open the Launcher

Run the Raku Runtime™. The launcher opens as a full game hub with tabs for creating, managing, and playing games.

2

Create with AI

Pick a template or describe your own game. Click “Open in AI Assistant” — it sends your prompt to ChatGPT, Claude, or Gemini. Save the response as a .raku file.

3

Play from Your Library

Your games appear in the My Games tab with icons, play counts, and favorites. Double-click to launch in under 1 second. No Unity, no Unreal, no build step.

Why It is Different

AI-Native Architecture

Dynamic difficulty, player profiling, adaptive audio, and NPC personality are built into the engine core. Not a plugin. Always on.

Instant Execution

.raku files are JSON declarations, not executables. The runtime interprets them in real-time. Edit the JSON, refresh the game. No compile.

On-Device AI

Small Language Models run locally (RakuSLM). No cloud calls. Privacy-first. Works offline. Personalization happens instantly.

XR-Ready

OpenXR 1.1, hand/eye tracking, spatial anchors, and passthrough. Every game is XR-capable by default. Toggle with one flag.

Spatial Audio + HRTF

Positional audio with head-related transfer functions. Adaptive music system responds to gameplay intensity. Voice assistant integration.

Open Specification

.raku file format is documented. Parse it, mod it, generate it from any tool. Runtime is free. No license fees. No royalties.

Engine Capabilities

A complete spatial engine with XR input, physics, particles, animation, spatial audio, and AI — all built in.

XR Input

26-joint hand tracking, eye tracking with foveated rendering, adaptive haptics, mixed reality passthrough, and persistent spatial anchors. OpenXR 1.1 across every major headset.

Explore XR Features →

Spatial Engine

GPU particle system (1M particles), rigid body physics with joints and raycasting, animation blend trees with FABRIK and TwoBoneIK, and HRTF spatial audio with ambisonics.

Explore Spatial Engine →

AI Systems

NavMesh pathfinding with crowd simulation, visual behavior trees, voice commands with speech recognition, and NPC intelligence with dynamic dialogue and quest generation.

Explore AI Systems →

Go Further with Pro

Ship real games with multiplayer, cloud saves, achievements, and standalone export. Everything you need to go from prototype to product.

Multiplayer & Lobbies

WebRTC peer-to-peer networking with lobby system, matchmaking, and voice chat. Up to 16 players with automatic NAT traversal.

Cloud Saves & Achievements

Cross-device save sync, global leaderboards, and achievement tracking. Integrates with Steam and platform-native systems on export.

Standalone Export

Package your game as a standalone .exe with custom icons and code signing. Distribute on Steam, itch.io, or any storefront.

Auto-Updater & Crash Reporter

Push updates to players automatically. Get detailed crash reports with stack traces and system diagnostics in your developer dashboard.

Marketplace Publishing

Publish and monetize your games on the RakuAI Marketplace. Set pricing, manage reviews, and track sales analytics.

Profiler & Custom AI Models

Real-time performance profiling overlay. Load your own SLM models for custom NPC dialogue, dynamic content, and genre-specific AI.

Explore Pro Features Developer Guide

By the Numbers

2,718
C API Functions
10
Game Templates
5
Granted Patents
19 MB
Total Runtime Size

Download the Runtime

Free. No account. No license fees. No royalties.

🖳

Windows

Windows 10+ (x64)

Installer (.exe, 19 MB)
or download .zip
🍎

macOS

macOS 13+ (Apple Silicon & Intel)

Coming Soon
🐧

Linux

Ubuntu 22.04+ / Fedora 38+ (x64)

Coming Soon

All releases & changelog →

Beta Feedback

Found a bug? Have a suggestion? We want to hear from you. Your feedback directly shapes the engine.

The GDC 2026 Open Beta runs through June 30, 2026. All Pro features are free during the beta — no credit card required. Help us shape the future of game creation.

Building with the SDK? Developer Discussions →