Sync Properties for Networked State
Sync Properties for Multiplayer The attribute automatically synchronizes property values to all clients when they change. Basic Sync Sync Flags Customize sync b…
Storage (UGC)
Manage user-generated content, save games, and player creations. Creating Entries Entry Properties Reading Files Listing Entries Deleting Entries Steam Workshop…
ModelRenderer Material Overrides: MaterialOverride, SetMaterialOverride by Tag, Per-Index Materials Accessor, and Attachments
ModelRenderer Material Overrides: MaterialOverride, SetMaterialOverride, and Materials Accessor provides several ways to override materials on a model. Global M…
Math types — Vector3, Rotation, Angles, Transform, TimeSince, and BBox
Math Types — Vector3, Rotation, Angles, and Transform s&box uses its own math types. Here's a practical reference for the ones you'll use constantly. Vector3 Ro…
Sandbox: ControlSystem — vehicle seat and contraption control with IPlayerControllable
ControlSystem — Vehicle Seat and Contraption Control is a that drives components on contraptions. When a player sits in a , the system walks the connected contr…
Sandbox: CleanupSystem — full scene cleanup and per-player cleanup with Ownable
Sandbox CleanupSystem — Scene Cleanup and Per-Player Cleanup is a that handles cleaning up spawned objects. It distinguishes between "baseline" objects (part of…
ConVar and ConCmd: Console Variables and Commands in s&box
ConVar and ConCmd: Console Variables and Commands s&box uses and attributes on static properties and methods to expose them to the console system. ConVar (Conso…
Inventory Hotbar UI Component
Inventory HUD with Hotbar A Razor PanelComponent that displays player inventory slots as a hotbar with mouse wheel and number key support. Implementation Key Fe…
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 …
SceneCamera: World-to-Screen, Screen-to-World, Render Hooks, and Camera Properties
SceneCamera: World-to-Screen, Screen-to-World, and Render Hooks is the main camera class in s&box. It wraps a native frustum and provides coordinate conversion,…
TraceAttackInfo record struct
TraceAttackInfo Record Struct Information about a trace-based attack in s&box, used to pass attack data through the weapon system. Properties Target () - The Ga…
Network visibility — culling networked objects per client with INetworkVisible
Network Visibility — Culling Networked Objects Per Client Network visibility controls whether a networked object sends updates (Sync Vars, transforms) to a spec…
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…
VirtualGrid
VirtualGrid Efficient virtualized grid component for large lists in UI. When to Use Use when displaying: Large item lists (100s-1000s) Inventories with many slo…
ActionGraph — visual scripting with action nodes, delegates, and C# integration
ActionGraph — Visual Scripting ActionGraph is s&box's visual scripting system. Nodes represent actions or expressions, and links carry values or signals between…
CameraNoiseSystem example: Camera effects
CameraNoiseSystem Example: Camera Effects CameraNoiseSystem is a GameObjectSystem that applies temporary camera effects (shake, noise, etc.) by implementing ICa…
GameManager.Spawn RPC with Ident Parsing
GameManager.Spawn RPC Broadcast RPC for spawning entities from string identifiers with automatic weapon pickup detection. Ident Format - Spawn a prop from asset…
Reusable World-Space Interaction Prompt Framework
A small, compartmentalized interaction framework can be built from three pieces: : the base component placed on objects the player can use. : the player-side ra…
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 …
Sandbox: Duplicator tool — copy, paste, and save contraptions with DuplicationData
Duplicator Tool — Copy, Paste, and Save Contraptions The Duplicator tool copies a contraption (a connected graph of GameObjects) to JSON and pastes it back. It …