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s&box MCP Knowledgebase

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

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menu_bookDocumentation
May 20, 2026

Razor Panels: HTML/CSS UI with C# in s&box

s&box UI can be created using Razor syntax — web-like HTML/CSS combined with C#. Panels are not rendered via a HTML renderer; the syntax is a convenience layer …

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 20, 2026

GameObjectSystem: Batch Processing and Execution Order Control

A GameObjectSystem lets you run logic at specific points during the frame for all components of a type, rather than relying on individual component Update metho…

menu_bookDocumentation
May 20, 2026

Scene Tracing: Raycasts, Sphere Traces, and Box Traces

Scenes can be traced against using with a builder pattern. At minimum, traces need a shape, start, and end. You can filter by tags or use your project's collisi…

menu_bookDocumentation
May 20, 2026

Networked Objects: Spawning, Network Modes, and Interpolation

Any GameObject can become networked by calling . It will then be sent to all clients and can have Sync Properties and RPC Messages. Spawning a Networked Object …

menu_bookDocumentation
May 20, 2026

RPC Messages: Broadcast, Owner, Host with Filtering and Caller Info

Components can contain RPCs — functions that when called locally, are also called remotely. Supported RPC argument types are the same as Sync properties. Basic …

menu_bookDocumentation
May 20, 2026

Sync Properties: Networked State with Change Detection and Collections

The attribute on a Component property sends its latest value to other players each time it changes. Only the owner of the object can change synced properties. B…

menu_bookDocumentation
May 12, 2026

s&box EaseType: Animation easing functions

EaseType Enum Documentation EaseType is an enum that defines easing functions for animated hydraulic movement. It is used by HydraulicEntity to control how the …

menu_bookDocumentation
May 12, 2026

s&box ThrowType: Grenade throw distance

ThrowType Enum Documentation ThrowType is an enum that defines how a grenade is thrown by the HandGrenadeWeapon. It controls the throw distance and trajectory b…

menu_bookDocumentation
May 12, 2026

s&box Throwable: Grenade type enum

Throwable Enum Documentation Throwable is an enum that defines the type of throwable weapon for viewmodels. It is used by the ViewModel component to specify whi…

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 12, 2026

s&box SnapGrid: World-space snap grid overlay

SnapGrid: World-Space Snap Grid Overlay SnapGrid is a sealed class that manages a world-space snap grid overlay projected onto a surface plane. It is used by th…

menu_bookDocumentation
May 12, 2026

s&box StackAlignMode: Stacker alignment modes

s&box StackAlignMode Enum StackAlignMode is an enum used by the Stacker tool to determine how the stack direction axis is interpreted. It controls whether stack…

menu_bookDocumentation
May 12, 2026

s&box StackDirection: Stacker tool directions

s&box StackDirection Enum StackDirection is an enum used by the Stacker tool to specify which axis to stack objects along. It defines the six cardinal direction…

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 DupeCategory: Workshop duper categories

s&box DupeCategory Enum DupeCategory is an enum used to categorize workshop dupes for filtering and browsing. Each category has an associated icon for UI displa…

menu_bookDocumentation
May 12, 2026

s&box WheelOverlay: Direction arrow overlay

WheelOverlay Static Class WheelOverlay is an internal static class that draws a spinning direction arrow overlay on wheel faces. Used by the Wheel tool to visua…

menu_bookDocumentation
May 12, 2026

s&box HUD: UI scale factor

HUD Static Class HUD is an internal static class that provides a scale factor for UI elements based on screen resolution. It ensures UI elements scale proportio…

menu_bookDocumentation
May 12, 2026

s&box GamePreferences: User preferences

GamePreferences Static Class GamePreferences is a static class that defines the local user's preferences for the game. These ConVars control player-specific set…

menu_bookDocumentation
May 12, 2026

s&box LocalProps: Built-in prop definitions

LocalProps Static Class LocalProps is a static class that defines hardcoded models that ship with the game and are not available on the workshop. These models a…