Ultimate Engine CoPilot - The World’s Most Comprehensive AI Development Tool for Unreal Engine

Distribution Product Discussion
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The most comprehensive AI copilot ever built for Unreal Engine.
Generate Blueprints, animations, materials, Niagara VFX, sequencer cinematics, UMG widgets, PCG worlds, behavior trees, and more from natural language. Analyze your project, talk to your engine with voice, and run concurrent AI agents inside the editor.

:star: Featured on FAB (Feb 5th-9th, 2026) AND (Apr 13th-15th) | Endorsed by Epic Games :star:

The very first AI Copilot to emerge for Unreal Engine 5 back in 2025, and still the most complete toolset on the market today. This plugin pioneered AI-assisted game development inside the editor and continues to push the boundaries of what’s possible. Join the fastest-growing community in the UE ecosystem, trusted by thousands of developers worldwide.

:rocket: V1.0 IS LIVE. WE ARE OFFICIALLY OUT OF BETA.

WHY THIS PLUGIN HAS NO COMPETITION

  • :stop_sign: One-Time Purchase. Own it Forever. No subscriptions. No credits. No monthly fees. Lifetime updates included.
  • :free_button: Free AI Usage Built-In. Comes with two free-tier slots using real models. No API key required to start. No other copilot gives you free AI access after purchase.
  • :laptop: Full C++ Source Code Included. This is not a black box. Modify, extend, and learn from every line. No other copilot offers this freedom.
  • :electric_plug: Bring Your Own AI (9 API Slots). Configure up to 9 API keys with hotkey switching (ALT+1 to ALT+9). Use Claude, OpenAI, Gemini, DeepSeek, OpenRouter, or Local LLMs (Ollama, LM Studio) for 100% privacy.
  • :robot: Run Concurrent AI Agents. Run Claude Code, Codex, GitHub Copilot, and Gemini CLI agents simultaneously inside the editor with full access to every tool via MCP.
  • :bust_in_silhouette: By a Solo Dev, For Developers. A passion project with direct, transparent Discord support. Not a corporate cash-grab.

:hammer_and_wrench: WHAT V1.0 CAN ACTUALLY DO (1050+ Tools)

This is not a chatbot that just gives you advice. It does the actual work.

  • Blueprint Generation: Create blueprints, add variables, functions, components, macros, and interfaces. Build entire event graphs from a single prompt. The AI places nodes, wires connections, sets defaults, and compiles the code.
  • Animation System: BlendSpaces, Montages, Composites, Aim Offsets, AnimBP state machines, AnimGraph chains, IK nodes, virtual bones, motion warping, and sync groups.
  • Niagara VFX: Create systems/emitters, add modules, configure renderers, set parameters, distribution curves, and data interfaces.
  • Sequencer & Cinematics: Level sequences, actor bindings, camera rigs (rail/crane), visibility tracks, MRQ rendering, sub-sequences, and keyframe control.
  • Materials: Create materials, instances, and parameter collections. Full material graph editing (add, connect, delete, auto-layout), material layers, blends, and static switches.
  • UMG Widgets: Create full widget hierarchies from layouts. Edit properties, slots, anchors, image brushes, and widget animation keyframes.
  • PCG Procedural Generation: Create graphs, connect nodes, mesh spawners, transform randomizers, slope/noise filters, subgraphs, and self-pruning.
  • AI & Logic: Full creation and editing for Behavior Trees (blackboards, composites, tasks, decorators) and State Trees (transitions, evaluators, conditions).
  • Gameplay Ability System (GAS): Attribute sets, abilities, effects, cues, modifiers, stacking, cost, cooldown, and tags.

…And 30+ More Categories:
Audio & MetaSounds, Data Structures (Enums, DataTables), Physics & Destruction, Environment & Lighting (Sky, Water, Post-process), Control Rig, IK Retargeting, Motion Matching, Splines, Landscape, NavMesh, Vehicles, Mass Entity, Geometry Script, Foliage, Rendering Config (Lumen/Nanite), Editor Utility, Asset Management, Git Integration, and Play Testing Profiling.

:artist_palette: AI ASSET GENERATION & VOICE CONTROL

  • Text-to-Texture: Generate textures via Imagen, DALL-E, Together AI, or OpenRouter.
  • PBR Material Gen: Generate one AI texture and algorithmically derive Normal, Roughness, Metallic, and AO maps.
  • 3D Model Gen: Text-to-3D and Image-to-3D via Meshy AI.
  • Sound Gen: Generate sound effects, music, and voice via multiple providers.
  • Voice Integration: Talk to your engine hands-free. Record via microphone with Speech-to-Text (Whisper), and hear responses via 6 adjustable TTS voices.

:brain: FULL PROJECT INTELLIGENCE

  • Project Scanner: Indexes your entire project so you can ask the AI deep architectural questions.
  • Visual Diagrams: Generates interactive Dependency Graphs, Inheritance Trees, Flowcharts, and Pie Charts directly in the chat.
  • Unreal Insights Profiler: One-click performance profiling with AI-driven trace analysis to fix bottlenecks.
  • Cross-Session Memory & GDD: The AI remembers context across sessions. Feed it your Game Design Documents (GDD) and let it act as your co-director.

:globe_showing_europe_africa: THE LEARNING ECOSYSTEM

This is a living platform built into the editor. Learn while you build with built-in documentation, structured courses, a visual Skill Tree, XP leveling, daily streaks, achievements, and a Global Leaderboard.
Native UI Supported in 20 Languages: English, Spanish, French, German, Chinese, Japanese, Russian, Portuguese, Korean, Italian, Arabic, Dutch, Turkish, Polish, Vietnamese, Indonesian, Hindi, Romanian, Thai, Ukrainian.

:gear: TECHNICAL DETAILS

  • Engine Versions: Unreal Engine 5.5, 5.6, 5.7 (5.4 goes live later this week)
  • Platforms: Windows, macOS, Linux (Editor only)
  • Licensing: Licensed per-seat according to FAB’s policy. Reselling or redistributing the plugin or its source code is strictly prohibited. FAB and gamedevcore.com are the only legal sources.

:warning: Important: AI is a copilot, not an autopilot. AI-generated content can sometimes be unpredictable. Always review and test generated assets before production use.

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 CoPilot 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 (next price increase will happen on ~23rd April, the plugin will be ~300$).

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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?

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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.

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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.

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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.

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

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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.

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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.

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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.

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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.
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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.

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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?

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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!

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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

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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.

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

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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).

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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.

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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!

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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