s&box libraries list.

Connects Claude AI to your s&box editor in real-time. Describe what you want and it creates. Game Dev is open for all!

Create custom reusable particle systems and control their parameters from the editor or code!

Drag and Drop UI editor for Razor

Generate Height/Splat Maps within the editor!

Visual UI editor for s&box. Design documents on a canvas, generate clean Razor + SCSS, preview live with one-click

An alternative Curve structure featuring better performance and editor features like undo, snapping, and automatic interpolation

Paint foliage in your scene with instanced rendering

New version: https://sbox.game/redsnail/roadtool2

Editor Tool for importing bsp. Creates appropriate GameObjects with their components. Makes use of the mapping MeshComponent.

Import any rigged gun (FBX/glTF) into s&box: auto grips, first/third-person viewmodel, animgraph, aiming, reloads and prefab.

Timeline editor for cutscenes and trailers

Take better Screenshots inside the editor with Discord WebHook Support!

Editor support for Ink, a narrative scripting language for games, with examples

Connect AI coding assistants to your S&box editor in real time — 31 MCP tools for reading, writing, and controlling your scene w

Edit component types without C#

AI Tools for S&Box, right now it allows you to generate and split sounds in-editor. https://www.youtube.com/watch?v=IaqEkGHyJkM

A humanoid auto-rigging editor tool for s&box.

Library for quickly building interior room layouts, corridors, doors, windows.

Citizens motivate you every 15-30 minutes

SbTween is plug and play tween library for S&box Editor.

A simple system to create dialogue with a custom editor!

18 MCP tools for the s&box editor, and 17 reference files that stop an AI agent writing Unity code into your Source 2 project.

Simple addon that adds Discord Rich Presence to your s&box Editor. Restart the Editor after installation

Simple UI Editor / Preview