Free AI Game Developer

One desktop app that builds, edits and playtests your game — live inside Unreal, Unity & Godot. Just describe what you want.

Get the desktop appFree · Windows · macOS · Linux Other platforms & CLI

Free & open source
Sets up the engine plugin for you

Works with

Unreal
Unity
Godot
BrutalSoon

Total downloads

GitHub stars

Beyond code

Every asset your game needs, in one app

Models, textures, music and animation, made by the same AI that writes your code. Image models and music run on your own computer, for free.

3D models in Blender Free

The app finds or installs Blender, connects it, and the AI builds and edits your meshes in a real Blender.

Text to 3D Cloud · Pro

Describe an object and get a textured, game-ready model generated by AI.

Textures & images Local · Free

Open models like FLUX, SDXL and Qwen-Image run on your GPU. No cloud, no per-image cost.

SynthDef(\theme, { |freq = 220|
  var sig = Saw.ar(freq * [1, 1.5]);
  Out.ar(0, LPF.ar(sig, 1200) * 0.2);
}).add;

→ Assets/Audio/theme.wav

Game music Local · Free

Compose, render and export soundtracks with SuperCollider, straight into Unity, Unreal or Godot.

Rig & animate Cloud · Pro

Auto-rig characters, add textures and animations, and drop them into your engine.

Free, on your GPU

Images, textures and video, made on your own GPU

The app runs open models right on your computer. Nothing is uploaded and nothing is billed: generate as much as you like.

$0: per image or clip
14: open models
4 GB: of VRAM to start

NVIDIA GPUs from 4 GB and Apple silicon Macs. Each model’s licence applies.

FLUX.1 schnell
FLUX.2 klein
SDXL
Juggernaut XL
RealVisXL
Animagine XL
Qwen-Image
Qwen-Image-Edit
Z-Image Turbo
LTX-2.5 video
Wan 2.2 video

One framework

One framework for everything you build

Any engine, any agent, any skill, any plugin, any model. Swap one piece and the rest keeps working.

Any engine
Unity, Unreal Engine and Godot today, Brutal soon. Same app, same workflow.
Your agents & skills
Pick an agent for each chat, write your own, and call skills with $.

Plugins for the AI
Packages add new powers: Blender, music, 3D generation, image and video models.
Any LLM
GPT-6, Claude, DeepSeek, GLM and more. Choose the model for each chat.

Pricing

Free forever. Go Indie when you’re ready.

The App and every engine plugin are free and open source — run everything locally at no cost, no account required. Upgrade to Pro only when you want hosted AI: higher limits, premium models, and zero setup, right from the App.

IndieFor solo devs going all-in with hosted AI.
StudioMore throughput for small teams shipping fast.
Studio MaxMaximum limits for heavy, full-time production.

See Pro Plans Get the Free App

Cancel anytime · free tier never expires

261 capabilities across three engines

Talk to your engine in natural language.
It already knows what to do.

Every action your AI client can perform is a real MCP tool — and every engine has its own set. Pick one to see what it can do.

RQL / Query

Find & inspect GameObjects

Find & read assets

Script / Update or Create

Play mode, selection & menu items

Tests / Run

Screenshot / Isolated GameObject

Package Manager / List Installed

Tool / List

Animation clips

Particle system settings

Create ProBuilder shapes

Create cameras

5Scenes & objects

5Tools & skills

5Tilemap

5Timeline

4Assets & prefabs

4Scripts & C#

4Screenshots

4Packages

+moreacross 19 areas

Browse the 72 Unity capabilities →Or wire up your client →

Advanced

Already have an AI agent?

Every engine plugin also works on its own with Claude Code, Cursor, Copilot, Gemini and others: an MCP server, a CLI that installs and configures it, and AI skills generated from the tools in your project. The app sets all of this up for you — reach for these only if you bring your own agent.