Network Visibility: Per-Connection Object Culling with INetworkVisible
Network Visibility controls whether a networked object should be visible (receive ongoing network updates) for a specific player. By default, all networked obje…
Sandbox: Stacker tool — duplicate objects in a line or arc with StackAlignMode
Stacker Tool — Duplicate Objects in a Line or Arc The Stacker tool clones a selected object N times along a configurable axis with optional rotation and gap. It…
s&box PostProcessResource: Post-processing effect GameResource
PostProcessResource GameResource API Reference PostProcessResource is a GameResource that defines a post-processing effect with a prefab, used by the PostProces…
ScreenPanel and WorldPanel: AutoScale Strategies, ZIndex, LookAtCamera, and Interaction Range
ScreenPanel and WorldPanel: UI Components in s&box Scenes ScreenPanel is the root component for 2D screen-space UI. It renders attached children to the screen. …
Sandbox: ToolMode system — creating custom Tool Gun modes
ToolMode System — Creating Custom Tool Gun Modes is the base class for all Tool Gun tools in Sandbox. Tools are components on the Toolgun and are enabled/disabl…
RenderOptions: Game, Overlay, Bloom, AfterUI Render Layers — and Renderer.Attributes for Shader Parameters
RenderOptions: Render Layers for SceneObjects controls which render layers a component's appears in. It's exposed as a property on all subclasses. Render Layers…
ToolMode Base Class for Toolgun Modes
ToolMode Base Class Abstract base class for creating toolgun modes in s&box. Handles input registration, action dispatch, and HUD rendering. Class Overview Acti…
Collider Component: Triggers, Surface Properties, Keyframe Bodies, Concave Shapes, and Tag Propagation
Collider Component: Triggers, Surface Properties, and Keyframe Bodies The abstract base class is the foundation for all physics colliders in s&box (, , , , ). T…
RadiusDamage — explosion area damage with IDamageable, occlusion, and physics force
RadiusDamage Component is a built-in s&box component that applies damage to all objects within a sphere. It integrates with the system and can apply outward phy…
UndoSystem: Per-player undo functionality
UndoSystem: Per-Player Undo Functionality This example shows the UndoSystem which provides per-player undo stacks for tracking spawned objects and allowing play…
s&box ServerSettings: Server-controlled settings
ServerSettings Static Class ServerSettings is a static class that defines server-controlled settings replicated to all clients. These ConVars control game-wide …
s&box JSONObject Save Data Helper for Components
This s&box-focused sample shows how to programmatically construct and deconstruct JSON for component save data. It is useful for player saves, world unlock stat…
Sandbox: BaseWeapon — ammo system, reload, shoot delay, and IPlayerControllable
BaseWeapon — Ammo, Reloading, and Firing Pattern extends and adds ammo management, reloading, and a shoot delay system. It implements so it can also be used fro…
s&box TimeSince and TimeUntil: Convenient Time Measurement Structs
s&box TimeSince and TimeUntil: Convenient Time Measurement Structs Both structs use internally and support implicit conversion from /. TimeSince Measures time e…
Scene.Push(), BatchGroup(), FindInPhysics, and FindAllWithTag — Scene Context Management
Scene.Push() and Scene.BatchGroup(): Scene Context Management Scene.Push() makes a scene the active scene for the duration of a scope. This is required when cre…
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,…
s&box networking gotchas — IsProxy, Sync, Authority, NetworkSpawn, and culling
s&box Networking Gotchas Common mistakes when building multiplayer games in s&box. IsProxy vs IsAuthority is true on all clients that don't own the object. Alwa…
Sandbox: LimitsSystem — server-side per-player spawn and tool limits via ConVars
LimitsSystem — Server-Side Spawn and Tool Limits is a that enforces configurable per-player limits on props, constraints, and tool entities. It listens to and .…
Sandbox: Physgun — grab, freeze, launch, and pull mechanics
Physgun — Grab, Freeze, Launch, and Pull Mechanics The Physgun () is a that lets players grab, move, freeze, and launch physics objects. It uses a struct to tra…
Sandbox: NPC system — Schedule, Task, and Layer architecture
NPC System — Schedule, Task, and Layer Architecture The Sandbox NPC system uses a layered architecture: Layers handle continuous behaviours (navigation, senses,…