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Godot SDK (beta)Beta

AI NPCs for Godot 4

Most AI character platforms skip Godot. Neocortex brings visually designed, voiced characters to Godot 4 projects.

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  • Free plan
  • No credit card
  • Unity, Unreal, Godot, Web SDK and Web API
Cora, the Neocortex AI character, waving hello

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Get started

From zero to a talking character in Godot

  1. 1

    Design your character

    Build personality, knowledge, emotion and actions in the visual editor, and test it in the browser for free.

  2. 2

    Add the addon

    Copy the Neocortex addon into your project's addons folder and enable it in Project Settings.

  3. 3

    Talk to it

    Add your API key and character ID, then send text or voice from your scene.

Requirements

  • Godot 4.x
  • A free Neocortex account and API key
Read the Godot docs

What you get

Built for Godot developers

01

Text and voice

Send text or voice and get text or voice back.

02

Chat history

Keep conversation context across turns.

03

Events

React in your scene when characters reply or trigger actions.

04

Visual editor

Characters are designed in the browser, not hard-coded.

05

Move engines freely

The same character works in Unity, Unreal and the Web API.

06

Shape the roadmap

The Godot SDK is in beta; Godot developers' feedback decides what comes next.

How it works

Characters you design, not prompts you babysit

  • Personality, emotion, knowledge and world are nodes you connect, not prompts you rewrite.
  • Intents and actions turn what a player says into something your game does.
  • Test every character in the browser for free before it reaches your engine.
neocortex.link/dashboard/characters
Neocortex visual character editor: emotion, personality, accent, language, voice and knowledge nodes connected to an agent, with intents mapped to in-game actions

What Our Customers Say

Discover what creators are saying about building with Neocortex.

After trying several Smart NPC providers, I came across Neocortex while looking for a stateful conversational AI solution for our Virtual Education platform. Neocortex stood out and topped all our key considerations.

Vallikat Peethamber
Managing Director

Neocortex opened scalable solutions for our VR platform, letting us create scenarios that make training more immersive. Keeping AI agents within clear boundaries is hard, but Neocortex handles it very well and makes customization easy.

Ottó Farkas
IT Specialist / Project Manager

In classroom practice, Neocortex and its action-based mechanism provide students with an out-of-the-box way to bridge conversational agents into software and hardware-based interaction design workflows.

Hongming Li
Lecturer / Instructor

I found out about Neocortex while I was working on my final-year project, and the platform's ease of integration and accessibility enabled me to seamlessly implement smart NPCs in my application. Highly recommend it!

Angela Pellillo
Backend Developer

Neocortex was the first step in bringing LLM-powered NPCs into a real Unity3D prototype, fast-tracking development and growing my TikTok account from 0 to 4000 followers within a month!

Brandan Chen
Associate Game Producer

After trying several Smart NPC providers, I came across Neocortex while looking for a stateful conversational AI solution for our Virtual Education platform. Neocortex stood out and topped all our key considerations.

Vallikat Peethamber
Managing Director

Neocortex opened scalable solutions for our VR platform, letting us create scenarios that make training more immersive. Keeping AI agents within clear boundaries is hard, but Neocortex handles it very well and makes customization easy.

Ottó Farkas
IT Specialist / Project Manager

In classroom practice, Neocortex and its action-based mechanism provide students with an out-of-the-box way to bridge conversational agents into software and hardware-based interaction design workflows.

Hongming Li
Lecturer / Instructor

I found out about Neocortex while I was working on my final-year project, and the platform's ease of integration and accessibility enabled me to seamlessly implement smart NPCs in my application. Highly recommend it!

Angela Pellillo
Backend Developer

Neocortex was the first step in bringing LLM-powered NPCs into a real Unity3D prototype, fast-tracking development and growing my TikTok account from 0 to 4000 followers within a month!

Brandan Chen
Associate Game Producer

From idea to playable character in a weekend

Game-jam teams use Neocortex to put talking, acting AI characters into playable games within a single weekend.

Read a game jam story

FAQ

Neocortex for Godot: common questions

Is the Neocortex Godot SDK production-ready?

The Godot SDK is in beta. It supports text and voice chat, history and events in Godot 4.

Which Godot versions are supported?

Godot 4.x. Add the addon to your project's addons folder and enable it in Project Settings.

Does the Godot SDK support voice?

Yes. Send text or voice to a character and get text or voice back, with chat history and events.

Is it free to try?

Yes. Neocortex has a free plan and free testing in the browser editor.

Comparing tools?

How Neocortex compares for Godot teams

Convai alternative

Convai counts every character reply against a monthly quota, with concurrency set per API key. Neocortex gives game teams monthly credits, free editor testing and characters designers control.

Inworld AI alternative

Inworld moved its focus to voice and inference for consumer apps and retired Character Studio. Neocortex keeps character design visual, game-first and in your engine.

Player2 alternative

With Player2, every player signs in to Player2 and spends their own credits, and NPCs stop answering when those run out. Neocortex keeps your players inside your game.

Try AI characters in Godot

Free plan, no credit card. Build a character in the browser and talk to it in minutes.

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