build-world

Build interactive 3D worlds with high-quality assets from Thrixel and your AI agent of choice.

Active — Updated in the last 14 days

Works with

Claude

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103 GitHub stars (103)

+9 in 16 days

Stars gained per day · daily snapshots since Sep 30

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4 skills (4 skills found in its SKILL.md files)
30 forks (30 forks)
1d ago last update (Last updated 1d ago)

Install

Skills CLI

npx skills add thrixel/build-world

Asks which skills and agents to install. Just one: npx skills add thrixel/build-world --skill build-world — add -g for every project.

Claude Code

git clone https://github.com/thrixel/build-worldcp -r "build-world/skills/build-world" ~/.claude/skills/

Copies the build-world skill into ~/.claude/skills/ for every project (use .claude/skills/ for one project). Repeat for the other skills listed below.

Plugin

/plugin marketplace add thrixel/build-world

Run inside Claude Code if the repository ships a plugin marketplace, then pick plugins from /plugin.

Skills can run code on your machine — read the SKILL.md first.

What it does

In the author's own words, from each skill's SKILL.md.

build-world

Builds polished, fully playable 3D game prototypes in three.js, Roblox, Unity, or Unreal Engine, with high-quality (.glb/.fbx) meshes from the Thrixel API, and (for three.js and Unity) publishes finished games to a public thrixel.world link that anyone can play in a browser. Use when the user wants to make a game, build a playable prototype, or generate 3D assets, and also when they want to publi…
skills/build-world/SKILL.md on GitHub (opens in a new tab)
create-toolset

Use this skill when authoring or extending an Unreal Engine toolset, a class of static, AI-callable functions registered with `ToolsetRegistry` and exposed through the unreal-mcp server. Trigger when the user wants to add, expose, or register a new tool method, create a new toolset, or extend an existing one such as `BlueprintTools`, `StaticMeshTools`, `ObjectTools`, `LevelTools`, or `MaterialToo…
skills/build-world/engines/unreal/EpicGames-UnrealMCP-skills/skills/create-toolset/SKILL.md on GitHub (opens in a new tab)
skill-authoring

Use this skill when creating, editing, or reviewing an Unreal Engine Agent Skill, a named bundle of instructions registered with the unreal-mcp server (distinct from Claude Code's harness skills under `.claude/skills/`). Trigger when the user wants to add or change a skill that the in-editor agent will load. Concrete triggers: 'create a new Agent Skill', 'add a skill for X workflow', 'edit/update…
skills/build-world/engines/unreal/EpicGames-UnrealMCP-skills/skills/skill-authoring/SKILL.md on GitHub (opens in a new tab)
unreal-mcp

Use this skill to perform actions inside an Unreal Engine project via a live-editor MCP connection. Trigger when the user wants to change, query, or run something in their Unreal Engine project, not for conceptual or docs questions. Concrete triggers: spawn/move/duplicate/transform actors in a level, open a `.uproject`, add things around a PlayerStart, create or edit a Blueprint/Widget/Material/N…
skills/build-world/engines/unreal/EpicGames-UnrealMCP-skills/skills/unreal-mcp/SKILL.md on GitHub (opens in a new tab)

Review before you install

A skill is a set of instructions and scripts your agent will follow, and it can run code on your machine. Read the SKILL.md and any scripts first — this listing is not a security review.

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