s&box MCP Knowledgebase

Documentation, API references, code examples and community knowledge for s&box development.

library_books 595 entries menu_book 352 Documentation code 133 API Reference terminal 100 Code Example groups 10 Community
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menu_bookDocumentation
May 3, 2026

Property Attributes for Editor Inspector

Property Attributes for Editor Inspector Property attributes customize how fields appear and behave in the s&box editor inspector. Organization Attributes Visib…

menu_bookDocumentation
May 3, 2026

Prefab Instance Overrides

Prefab Instance Overrides Customize individual prefab instances without affecting the original or other instances. Types of Overrides Visual Indicators Prefab i…

menu_bookDocumentation
May 3, 2026

Network Helper

Network Helper Pre-built component for common multiplayer scenarios. What It Does NetworkHelper handles typical multiplayer setup: Auto-creates server if enable…

menu_bookDocumentation
May 20, 2026

Hotloading Pitfalls: Default Values, Types, Delegates, and Optimization

s&box hotloads code changes live when you save or files. Understanding the pitfalls helps avoid subtle bugs during development. How It Works IL Hotload (Fast): …

menu_bookDocumentation
May 12, 2026

Steam filtering API for user content sanitization

Steam Filtering API in s&box s&box provides Steam filtering APIs to sanitize user-generated content like names and chat messages. This helps prevent profanity, …

menu_bookDocumentation
May 4, 2026

Sandbox: SaveSystem — scene diff save/load with versioning and ISaveEvents

Sandbox SaveSystem — Scene Diff Save/Load The captures the difference between the current scene state and the original scene file. This means saves are compact …

menu_bookDocumentation
May 4, 2026

GameObject.Network Accessor — IsProxy, IsOwner, TakeOwnership, DropOwnership, Refresh, and IGameObjectNetworkEvents

GameObject.Network Accessor — Ownership, Spawning, and Proxy Detection is a that provides all network-related operations for a . It always resolves to the netwo…

menu_bookDocumentation
May 4, 2026

Prop Component: Procedural Components, Damage System, Gib Spawning, and DamageInfo Patterns

Prop Component: Procedural Physics, Gibs, Damage, and Network Patterns The component is a high-level s&box component that automatically creates , , and componen…

codeAPI Reference
May 12, 2026

s&box CameraNoiseSystem: Camera noise manager

GameObjectSystem that manages camera noise effects. Implements ICameraSetup to apply noise during camera rendering. Behavior Maintains a list of active BaseCame…

codeAPI Reference
May 12, 2026

s&box INetworkListener: Connection interception

Interface for network connection interception. Implement to accept or reject incoming connections. Methods Usage Implement on a GameObjectSystem or Component to…

menu_bookDocumentation
May 20, 2026

IGameObjectNetworkEvents: Ownership Change and Control Transfer Events

lets Components on a networked GameObject react to ownership changes. The events are targeted only at the specific GameObject whose ownership is changing. Inter…

menu_bookDocumentation
May 4, 2026

SyncFlags.Interpolate: How Networked Property Interpolation Works — Supported Types, InterpolationBuffer, and Delay

SyncFlags.Interpolate: How Networked Property Interpolation Works When is applied to a property, proxy clients receive a smoothed value between network ticks ra…

codeAPI Reference
May 20, 2026

Connection API: Properties, Methods, and Common Multiplayer Patterns

The class represents a network connection (client or server). Used extensively in multiplayer for identifying players, checking permissions, and managing networ…

terminalCode Example
May 3, 2026

Multiplayer and Networking

Complete guide to multiplayer setup in s&box. Creating a Lobby Joining a Lobby Spawning Networked Players Host/Client Checks Connection Events Networked Object …

menu_bookDocumentation
May 20, 2026

ISceneStartup: Scene Initialization Events for Host and Client Setup

The event interface in s&box allows Components and GameObjectSystems to listen to scene startup events. These run when pressing play in editor, loading a game, …

terminalCode Example
May 3, 2026

Stats API

Track player statistics with the Stats service. Recording Stats Reading Stats Stat Types Batching Stats are automatically batched and sent periodically. Call as…

menu_bookDocumentation
May 4, 2026

Game Static Class: ActiveScene, ChangeScene, TypeLibrary, Cookies, and Core State Properties

Game Static Class: ActiveScene, ChangeScene, TypeLibrary, and Core State The static class is the primary entry point for global game state in s&box. Core State …

menu_bookDocumentation
May 4, 2026

Connection Class: Local, Host, All, Find, Permissions, Kicking, and Visibility Origins

Connection Class: Local, Host, All, Find, and Permissions represents a network connection to a player. It's the primary way to identify and interact with player…

menu_bookDocumentation
May 4, 2026

Networking Static Class: IsHost, IsClient, CreateLobby, Connect, SetData, and Debug Convars

Networking Static Class: IsHost, IsClient, CreateLobby, Connect, and Server Data The static class manages the multiplayer session in s&box. Session State Note: …

terminalCode Example
May 3, 2026

Leaderboards API

Implement leaderboards using s&box Services API. Submitting Scores Reading Leaderboards Leaderboard Entry Properties Web API Access Query leaderboards from exte…