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
Results for "spawn" in menu_bookDocumentation 71 results closeClear
menu_bookDocumentation
May 5, 2026

Network Events - s&box Networking Documentation

Network Events Network events allow you to broadcast and listen for events across the network. Unlike RPCs which target specific objects, network events are glo…

menu_bookDocumentation
May 3, 2026

Network Ownership System

Network Ownership System Control who simulates and updates networked GameObjects with the ownership system. Ownership Basics Every networked object has an Owner…

menu_bookDocumentation
May 20, 2026

Connection Permissions: CanSpawnObjects and CanRefreshObjects

The host can change permissions for a specific in s&box multiplayer. The ideal place to set these permissions is in the network event callback when a player con…

menu_bookDocumentation
May 5, 2026

Ownership - s&box Networking Documentation

Ownership Network ownership determines which client or the host has authority over a networked GameObject. The owner controls synced properties and can send RPC…

menu_bookDocumentation
May 12, 2026

s&box DupeMovement: Duper movement types

s&box DupeMovement Enum DupeMovement is an enum that describes the type of movement a duper contraption is designed for. This metadata helps users understand ho…

menu_bookDocumentation
May 12, 2026

s&box PostProcessGroup: Post-process categories

PostProcessGroup Enum Documentation PostProcessGroup is an enum that categorizes post-processing effects for organization in the spawn menu and asset browser. I…

menu_bookDocumentation
May 20, 2026

Network Ownership: Transfer, IsProxy, and Orphaned Modes

Networked GameObjects can be owned by a connection. The owner simulates the object — controlling its position and sync properties. Unowned objects are simulated…

menu_bookDocumentation
May 5, 2026

Mapping - s&box Editor Documentation

Mapping s&box includes Hammer, the Source 2 level editor, for creating maps and environments. Build worlds with brushes, props, lighting, and gameplay entities.…

menu_bookDocumentation
May 3, 2026

ActionGraph - Visual Scripting System

ActionGraph - Visual Scripting System Create game logic using node-based visual scripting without writing code. Overview ActionGraph lets you: Build gameplay lo…

menu_bookDocumentation
May 20, 2026

ISceneStartup: Host and Client Scene Initialization Events

is a scene event interface for listening to scene initialization on host and client. It runs when pressing play in editor, loading a game, or joining a server. …

menu_bookDocumentation
May 5, 2026

Scene Metadata - s&box Scene Documentation

Scene Metadata You can implement the interface in any Component that has data you'd like saved to Metadata. Metadata is data that can be accessed without needin…

menu_bookDocumentation
May 20, 2026

Testing Multiplayer: New Instances, Hotloading, and Local Connect

s&box provides built-in tools for testing multiplayer without needing another player. You can spawn additional game instances that join your running session, wi…

menu_bookDocumentation
May 20, 2026

Prefabs: Reusable GameObjects with Runtime Spawning via Clone

A prefab is a GameObject that can be used in multiple places — across scenes or instantiated at runtime. Assets Prefabs are saved as PrefabFile assets. To creat…

menu_bookDocumentation
May 20, 2026

Decal Component: Projected Surface Effects with Random Variety

The s&box Decal component draws decals in the game world. It supports multiple DecalDefinitions for random variety without extra code. Setup Add a Decal compone…

menu_bookDocumentation
May 20, 2026

TemporaryEffect: Auto-Cleanup for Particle and Sound Prefabs

The TemporaryEffect component in s&box is added to prefabs containing ParticleEffects and Sounds. It automatically deletes the GameObject after all particles ar…

menu_bookDocumentation
May 5, 2026

Custom Particle Controller - s&box Documentation

Official s&box documentation for the Particle System - visual effects. Particle Effect creates GPU-accelerated visual effects. Custom Particle Controllers scrip…

menu_bookDocumentation
May 20, 2026

Component Interfaces: ExecuteInEditor, ICollisionListener, IDamageable in s&box

s&box provides several Component interfaces for specific purposes: editor execution, collision handling, triggers, damage, and networking. ExecuteInEditor Compo…

menu_bookDocumentation
May 5, 2026

GameObjectSystem - s&box Scene Documentation

GameObjectSystem GameObjectSystems are global systems that operate on groups of GameObjects. Unlike Components which are attached to single GameObjects, systems…

menu_bookDocumentation
May 3, 2026

s&box Cheat Sheet

s&box Cheat Sheet Quick reference for common s&box operations. Debugging Transforms GameObjects Components Input Networking

menu_bookDocumentation
May 5, 2026

Particle Effect - s&box Documentation

Official s&box documentation for Particle Effects - visual effects system. Particle Effect creates visual effects using GPU-accelerated particles. The system su…