--- title: Testing Unity’s Experimental Graph Toolkit: A Custom... description: A hands-on exploration of Unity 6.2's experimental Graph Toolkit, building a functional node-based state machine from scratch. Covers installing the package,... canonical: https://daily.dev/posts/testing-unity-s-experimental-graph-toolkit-a-custom-state-machine-tnx9pt5j0 twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Testing Unity’s Experimental Graph Toolkit: A Custom State Machine | daily.dev og:description: A hands-on exploration of Unity 6.2's experimental Graph Toolkit, building a functional node-based state machine from scratch. Covers installing the package,... og:url: https://daily.dev/posts/testing-unity-s-experimental-graph-toolkit-a-custom-state-machine-tnx9pt5j0 og:image: https://api.daily.dev/og/posts/Tnx9pT5J0.png og:image:alt: Testing Unity’s Experimental Graph Toolkit: A Custom State Machine og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Testing Unity’s Experimental Graph Toolkit: A Custom State Machine **[git-amend](https://daily.dev/sources/git-amend)** · 24 min read · 0 upvotes · 0 comments ## Summary A hands-on exploration of Unity 6.2's experimental Graph Toolkit, building a functional node-based state machine from scratch. Covers installing the package, creating custom node classes (start, state, transition) with ports and options, designing a graph in the editor, and writing a runtime execution engine including a scripted importer that converts editor graph data into a lightweight runtime format. Also implements a mediator pattern to bridge game state with the graph, and a director MonoBehaviour that evaluates transitions each frame. The result is a working state machine that transitions between idle, walking, and jumping states based on boolean conditions. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Building a LangGraph Agent from Scratch](https://daily.dev/posts/building-a-langgraph-agent-from-scratch-iwouhkssg) · Towards Data Science · 1 upvotes · 0 comments --- Tags: [#general-programming](https://daily.dev/tags/general-programming), [#game-development](https://daily.dev/tags/game-development), [#c#](https://daily.dev/tags/c#), [#unity](https://daily.dev/tags/unity) [View this post on daily.dev](https://daily.dev/posts/testing-unity-s-experimental-graph-toolkit-a-custom-state-machine-tnx9pt5j0) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Testing Unity’s Experimental Graph Toolkit: A Custom State Machine","url":"https://daily.dev/posts/testing-unity-s-experimental-graph-toolkit-a-custom-state-machine-tnx9pt5j0","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/testing-unity-s-experimental-graph-toolkit-a-custom-state-machine-tnx9pt5j0"},"datePublished":"2026-07-19T07:58:57.679Z","dateModified":"2026-07-19T08:25:12.995Z","description":"A hands-on exploration of Unity 6.2's experimental Graph Toolkit, building a functional node-based state machine from scratch. 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