siccity/xnode

Analysis updated 2026-07-03

★ 3,720C#Audience · developerComplexity · 3/5LicenseSetup · easy

Mindmap

mindmap
  root((xNode))
    What it does
      Visual node graphs
      Custom editors in Unity
    Use cases
      Dialogue systems
      State machines
      Decision trees
    Tech stack
      C# Unity
      No extra packages
    Installation
      Unity Package Manager
      OpenUPM registry
      Git submodule
      Copy files

mindmap root((xNode)) What it does Visual node graphs Custom editors in Unity Use cases Dialogue systems State machines Decision trees Tech stack C# Unity No extra packages Installation Unity Package Manager OpenUPM registry Git submodule Copy files

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What do people build with it?

USE CASE 1

Build a visual dialogue editor in Unity where writers connect conversation nodes without writing code.

USE CASE 2

Create a state machine graph editor to control character AI behaviors like idle, walk, and attack.

USE CASE 3

Add a custom decision-making or skill-tree graph to your game's designer toolkit.

USE CASE 4

Prototype a visual scripting tool inside Unity using xNode as the graph infrastructure.

What is it built with?

C#Unity

How does it compare?

	siccity/xnode	builtbybel/privatezilla	extendrealityltd/vrtk
Stars	3,720	3,719	3,719
Language	C#	C#	C#
Setup difficulty	easy	easy	moderate
Complexity	3/5	1/5	3/5
Audience	developer	general	developer

Figures from each repo's GitHub metadata at analysis time.

How do you get it running?

Difficulty · easy Time to first run · 30min

No outside libraries required, install via Unity Package Manager by pointing to the GitHub URL.

MIT license: use freely in personal and commercial projects with no restrictions beyond keeping the copyright notice.

In plain English

xNode is a framework for building node-based editors inside Unity, the popular game development platform. A node editor lets you work with visual graphs where boxes (nodes) connect to each other through lines, similar to how tools like visual scripting or shader editors work in other software. xNode gives developers the building blocks to create their own custom versions of these kinds of editors. The project is aimed at Unity developers who want to add node graph interfaces to their games or tools, but do not want to build all the infrastructure from scratch. Common uses mentioned in the README include custom state machines, dialogue systems, and decision-making systems. A state machine, for example, might control how a game character moves between behaviors like idle, walking, and attacking, and a node graph is a natural way to visualize that. On the technical side, xNode is designed to stay small and fast. It avoids adding unnecessary overhead at runtime, meaning your finished game does not carry extra baggage from the editor tools. It cleanly separates the code that runs in the Unity editor from the code that ships with the game, which is good practice. It also does not rely on any outside libraries, so there are no additional packages to install just to get started. Installation can happen a few different ways. You can add it through Unity's built-in package manager by pointing to the GitHub URL, install it via a package registry called OpenUPM, clone it as a git submodule, or simply copy the files directly into your project folder. The README includes a short code example showing how to define a node that performs basic math operations like addition, subtraction, multiplication, and division. The example illustrates how little code is actually needed to create a working node with inputs and outputs. xNode is released under the MIT license, which means you can use it freely in personal and commercial projects. A Discord community and a wiki with getting-started guides are available for support.

Copy-paste prompts

Prompt 1

I'm building a dialogue system in Unity using xNode. Show me how to define a DialogueNode with an input for the previous line and outputs for each response choice.

Prompt 2

How do I create a custom node editor window with xNode in Unity? Walk me through the minimum code to display a graph with two connected nodes.

Prompt 3

I want to build an AI state machine with xNode in Unity where each node represents a behavior like Patrol, Chase, or Attack. How do I connect states and evaluate transitions at runtime?

Prompt 4

Show me how to install xNode in Unity via the Package Manager using the GitHub URL, then walk me through the math node example from the README.

Frequently asked questions

What is xnode?

A lightweight Unity framework for building visual node graph editors, useful for dialogue systems, state machines, and custom tools inside your game.

What language is xnode written in?

Mainly C#. The stack also includes C#, Unity.

What license does xnode use?

MIT license: use freely in personal and commercial projects with no restrictions beyond keeping the copyright notice.

How hard is xnode to set up?

Setup difficulty is rated easy, with roughly 30min to a first successful run.

Who is xnode for?

Mainly developer.

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