Ultimate Engine Co-Pilot (formerly Ultimate Blueprint Generator) - The AI Co-Pilot for Unreal Engine

The ultimate AI copilot for Unreal Engine. Go beyond simple code generation: analyze your entire project’s architecture, build complex scenes and UI from a single command, and refactor Blueprints conversationally. This is a deeply integrated development partner that understands your code, your assets, and your context.

Featured on FAB on 5th-9th Feb 2026

One of the first Co-Pilots in Unreal Engine. This plugin has set the standard in innovation and it pushed the boundaries of Unreal. The fastest growing and the most flexible Co-Pilot on the market. Massive updates are set to come going forward. This plugin aims to be the universal standard when it comes to UE5 assistance and being featured on FAB by Epic Games is the most valuable proof that the plugin has been battle tested and validated by the community.

The AI Revolution in Unreal is Here. Don’t Get Left Behind.

The standard for professional development is evolving at lightning speed. AI assistance is no longer a gimmick, it’s the new competitive edge. While others are manually wiring nodes, you could be directing your vision, iterating on core gameplay, and focusing on what truly makes your game special. Every hour you wait is an hour your competitors are using AI to innovate, create, and ship faster than you.

Version 0.3.5 is live as of 26th January —> Video Overview

Video Trailer

Overview Video (13-Minute Video covering the new powerful features)

Discord Server

Documentation

Roadmap & Changelog
Frequently Asked Questions (FAQ)


The Co-Pilot Difference: Why This Plugin is the Best Value in Unreal

Before you see the features, understand the philosophy. Unlike the subscription-based, closed-source “off-FAB” plugins, this plugin is built differently.

:white_check_mark: One-Time Purchase. Lifetime Updates. No subscriptions. Ever. You buy it, you own it.

:white_check_mark: You Get the Full C++ Source Code. This isn’t a black box. Modify, extend, and learn from the plugin’s complete source code. No other co-pilot offers this freedom.

:white_check_mark: Truly Free & Unlimited Usage Options. Connect to free api key from Gemini or any other provider. Local LLM support added on 26th January 2026. The power is in your hands, not our servers. The “off-FAB” plugins charge you a ton of money for usage!

:white_check_mark: Robust & Reliable. Other tools rely on a single server. If it goes down, your plugin is useless. I offer multiple connection methods (Desktop Apps & Web AI) for a resilient workflow.

:white_check_mark: Built by a Developer, For Developers. This isn’t a corporate cash grab. It’s a passion project from a solo dev, with direct, transparent support on Discord.

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Have you ever felt stuck?

You know what you want to build, but you’re lost in a sea of nodes. You’ve watched hours of tutorials, but the logic still doesn’t click. Or maybe you’re a seasoned dev, tired of wiring the same boilerplate for the tenth time while a brilliant idea fades from your mind.

We’ve all been there. That’s why I built this.

This tool was born from a simple idea: to break down the barriers between a creative vision and its technical implementation. It’s the ultimate learning aid, the ultimate prototyper, and the ultimate time-saver. It’s the tool I wish I had when I was starting out.

Why This is an Essential Investment in Your Workflow

:speech_balloon: A True AI Partner, Not Just a Generator.
The conversation has changed. You can now select a node in your graph and ask the AI to add logic directly after it. It feels less like a command line and more like a collaboration. Got a confusing Blueprint from the marketplace? Just add it as context for the AI and have it explain it precisely and detailed. It’s a revolutionary way to learn and refactor code.

:brain: Think in Your Language. Create in Unreal.
It’s not just a translation tool. It’s about thinking in your native language, be it English, Spanish, German, Chinese, or more and seeing your ideas come to life without that mental barrier. The AI understands intent, not just words.

:high_voltage: The Fastest Way to Master Blueprints.
Stop guessing. Stop forming bad habits. This tool is like a 24/7 senior developer on your shoulder, showing you the “right way” to build logic. You’ll finally understand why things work the way they do, turning a steep learning curve into an upward launch.

:electric_plug: Unprecedented Flexibility & Power.
Your AI, your choice. I’ve massively expanded the support to include the most powerful models on the market. You can either connect the plugin to Desktop apps like Claude Desktop/Cursor/Github Copilot/Google Antigravity or you can connect to a Browser AI like DeepSeek/Gemini through a browser extension. Everything is covered inside the docs.

Local LLM support is live!

:red_exclamation_mark:Important Information & Disclaimer

  • This is a Beta Release: While the core features are stable and powerful, bugs may occur. Your feedback and bug reports are invaluable and will directly shape the future of this tool.

  • Unlike these other off-fab co-pilots where you don’t own the code of the plugin because you pay monthly subscriptions, this is not the case for this plugin. Source code is included and you can modify it as you please for your personal use case.

  • AI is a Co-Pilot, Not an Autopilot: AI-generated content can sometimes be unpredictable or incorrect. You are responsible for reviewing, testing, and validating all generated Blueprints before use in a production environment.

  • Licensing: This plugin is licensed per-seat. The included source code is for your use in projects and for educational purposes. Reselling or redistributing the plugin or its source code in any form is strictly prohibited. The Fab Marketplace is the only legal source for this plugin.

This is more than a plugin. It’s an investment in your skills, your time, and your creative freedom. Stop wiring. Start creating. Get The Ultimate Co-Pilot today.

Check out the Blueprint Analyzer if you don’t feel ready to commit yet: Blueprint Analyst

Check out the best RPG system for Unreal: Flexible Combat System.

Note: The price of the plugin will increase as more functionalities are being added.

4 Likes

will definitely need to check this out, looks pretty promising. Are GameplayTags supported as well? Can this plugin make corrections or add blueprint code on top of my existing code?

2 Likes

Both of the features you’ve mentioned are set to come with upcoming updates! Happy to answer any other question you might have, and I recommend using Discord as I’m active there all the time.

2 Likes

Will this have the ability to scan and learn your entire project locally so it can recommend new logic that falls in line with your current projects architecture and recommend where to put that code you are asking it for? Seems like a cool plugin but may have some shortfalls. hopefully you expand on it in the future with more abilities.

That goes deep in complexity. It is achievable but it will take a few updates to get there. It’s definitely on the roadmap.

Scanning the entire project might be a bit too big of a task though because the blueprint code from inside your classes will have to be turned into json format and parsed over to the AI Provider of choice. And I can only imagine the amount of tokens that would be parsed over. While this is technically possible, there might be some limitations on the AI side of things.

But I’m considering adding the option to use a local LLM so that people could eventually run a scan on the entire project without having to worry about tokens.

1 Like

Have just started using the plugin and already have found a couple great uses for it. TYVM

2 Likes

Thank you for the support! Lots of great stuff is planned for the upcoming weeks.

I already implemented the Prompt Builder (the optional plugin) inside the main plugin, for ease of use.
The update for it will go live this week.

I took this decision based on the feedback received.

1 Like

I ended up buying the plugin 2 days ago, support has been great. The generator works ok there is still plenty of stuff to be added and I’m looking forward to the updates it’s amazing to see what plugins are capable of these days.

1 Like

V 0.0.2 - Out on 2nd August 2025
What’s new?
1 - The Prompt Builder has been integrated into the main plugin!
2 - Added Casting support, cast to your characters, player controllers, game modes, and call functions and events from other actors.
3 - Added support for Timelines and Component Overlap Events.

V 0.0.3 - Out on 6th August 2025
What’s new?
1 - This was a hotfix update that fixed spawning actors.

What’s next for the month of August?

  • Adding support for Widget Blueprints,
  • Adding support for Animation Blueprints (Event Graph),
  • AND one of the most exciting features which is the ability of adding blueprints on top of existing code! And the ability of potentially optimizing/correcting existing functions and events,
  • Also I’ll add context ability to the Generator so you can have a conversation with it and iterate on the generated blueprints.

Another update is live on Epic! What’s new? V0.0.4 - 9th August 2025

  • Fixed a bug where Gemini wasn’t working inside the Prompt Builder.
  • Improved the Prompt Builder Interface. Now you can simply right click on any generated prompt to copy it.
  • Added support for Sequence node. Sequential logic can now be created.
  • Added support for Key Input Events. (Spacebar, Alphabet keys, Numeric keys). You can now create logic directly following a Key Input.

The roadmap for this month is looking good, Animation Blueprint support is being added as we speak, along with the rest of the new planned features for this month.

I just wanted to push a small update in between to fix some of the stuff and add support for new nodes.

I’m definitely looking to pick this up for my class I teach in the spring.

Fab really doesn’t offer any form of EDU licensing for tools and plug-ins, right?

1 Like

Hi! You’re right, there are no options for EDU licensing. Probably a Personal license should do. For any other questions don’t hesitate to reach out on Discord, have a nice Sunday!

New Update - September 1, 2025 - Major Update

Overview Video: https://youtu.be/jbUjiXv7wBY

  • Conversational & Context-Aware:

    • Node Insertion: Select any node in an existing graph and add new logic seamlessly after it.

    • Visual Understanding: Input screenshots of Blueprints to get clear, detailed explanations of complex logic.

    • Explain a selection of nodes and suggest improvements.

    • Multi-Function Generation: Create multiple functions or events from a single, comprehensive prompt.

  • Massively Expanded API & Model Flexibility:

    • Now with native support for Claude and Deepseek APIs, alongside OpenAI and Google Gemini.
  • Expanded Blueprint Support:

    • Now supports logic generation for Widget Blueprints and the Animation Blueprint Event Graph.
  • Improved Generation Stability

1 Like

Awesome tool which without a doubt will continue to grow , the developer for this tool is a major contributor to plugin development & Intergration for various tools he makes integrating tools such as riding systems into combat systems scalable and well documented with no headaches. He will continue to provide many products without a doubt & the Blueprints Lab is one of them. It helps save a ton of time for tedious stuff and is continuing to grow.

This beats the hell out of trying to figure out what the heck Chat Gpt or other tools are trying to tell you in their responses because this tool will actually do some of the work for you and now it can even explain segments of code.

1 Like

I appreciate the support! Lots of exciting new updates will roll out by the end of the year for sure :slight_smile:

1 Like

September 8, 2025

V0.0.6 - Added support for Local LLM. Ollama and LM Studio are supported.

Local LLM setup docs: Google Word Doc

(This feature is still experimental, you’ll get the best results using one of the API providers available like OpenAI, Gemini, Claude and DeepSeek but this shouldn’t stop anyone from testing their local LLMs).

October 20, 2025

Version 0.1.0 is a groundbreaking update, transforming the plugin into a complete AI Copilot for Unreal Engine. Featuring full Model Control Protocol (MCP) integration, you can now connect directly to AI clients like Cursor and Claude Desktop for a seamless, conversational workflow.

NEW TRAILER: https://youtu.be/7ZEKIcZkyO4

Overview Video: https://youtu.be/v2Uy6Mi51k8
Extended List of Features: Google Word
New Documentation: Google Word

Key New Features:

  • Project-Wide Intelligence: Scan your entire project to create a knowledge base. The AI can now generate detailed performance/memory reports and answer high-level questions like, “Where is the health system implemented?”

  • Advanced Scene Population: Instantly populate selected volumes or areas with hundreds of Static Meshes and Blueprints, featuring full randomization for location, rotation, and scale.

  • Complete UI (UMG) Scaffolding: Build and lay out complex UI hierarchies from a single prompt. The AI can create panels, buttons, and text, and control layout properties like anchors, alignment, and padding.

  • Conversational Code Refactoring: Select any Blueprint nodes and get a safe, non-destructive, optimized function as a suggested replacement.

  • Context-Aware Workflow: The AI is now aware of your context. It can create assets in your currently focused Content Browser folder.

  • Expanded Asset & Scene Control: Full support has been added for creating Materials, applying them to multiple actors, and spawning any actor type. The AI can also list and select actors in the World Outliner.

  • Complex System Generation: Scaffold entire gameplay systems (e.g., a complete Health system with damage/heal functions) from a single high-level command.

3 Likes

Absolutely Phenomenal first day! For a solo dev learning Unreal Engine for the first time this has given me a helpful guide and fellow explorer, Claude and I were cracking jokes over AI companions doing their own thing while we worked out which behavior tree or system was effecting the walk/run movement, Unreal doesn’t feel so daunting now! Thank you Roly!

1 Like

This tool is evolving fast, i mean FAST!

I have watched the new setup videos yesterday and was able to configure the integration with Claude Desktop within about 15-20 minutes. I was positively surprised that it could understand context from my selection in Unreal so easily, and give me details about my selection, the way it was built, etc.! I will experiment more in the coming days, but i can tell you, it became so much friendlier to use with this latest update.

On top of that, the developer replies quickly, welcomes ideas and suggestions, and brings a friendly, approachable energy to every interaction.

Plugin: :star::star::star::star::star:
Support: :star::star::star::star::star:

This comment was written for version 0.1.0.

1 Like