Async tasks in s&box — coroutines, parallel tasks, and frame-by-frame animation
Async Tasks in s&box Components s&box async tasks run on the main thread — they behave like coroutines. Use to yield one frame, to wait, and to run tasks in par…
s&box BasePickup: Pickup item base
BasePickup Abstract Class API Reference BasePickup is an abstract Component for items that can be picked up by players. Implements ITriggerListener and ICollisi…
BuildHash pattern for Razor panel optimization
BuildHash Pattern for Razor Panel Optimization BuildHash is a method you can override in Razor panels to prevent unnecessary rebuilds when the underlying state …
WorldPanel and ScreenPanel — HUD overlays and 3D world-space UI with Razor PanelComponent
WorldPanel and ScreenPanel — UI in the World s&box UI uses (Razor) attached to either a (HUD overlay) or (3D world-space UI). The same component works with both…
Game Mounts: Creating Custom Asset Mounts for External Games
The s&box mount system is extensible — anyone can write a mount to add support for a new game or engine. A mount detects a game's install directory via Steam, s…
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…
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 …
IPlayerControllable example: ThrusterEntity
IPlayerControllable Example: ThrusterEntity ThrusterEntity demonstrates how to implement IPlayerControllable for a thruster that responds to player input while …
UIDecal Component - Render Razor UI as a Decal
A Render Component for s&box that allows you to project Razor UI onto surfaces as a Decal. Great for sticking UI onto rounded walls, curved surfaces, or any geo…
Sandbox: BaseCarryable — unified AimRay, WeaponModel resolution, and seat-aware damage
BaseCarryable — Unified Weapon Base with AimRay and Seat Support is the root class for all holdable items. It handles viewmodel/worldmodel management, a unified…
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…
Camera and View Control
Working with cameras and player viewpoints in s&box. Main Camera Access Creating a Player Camera First-Person Camera Screen to World Ray World to Screen Camera …
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…
Sandbox: Ownable component — prop protection with IPhysgunEvent and IToolgunEvent
Ownable Component — Prop Protection and Physgun/Toolgun Access Control The component tracks which spawned a . It implements and to enforce ownership checks when…
WebSockets - s&box Networking Documentation
WebSockets s&box supports WebSocket connections for real-time communication with external servers. Use for custom networking, persistent data, or integrating wi…
NavMesh Agent - s&box Gameplay Documentation
NavMesh Agent The NavMeshAgent component provides automatic navigation along the NavMesh. It handles pathfinding, obstacle avoidance, and smooth movement to tar…
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…
VirtualGrid — efficiently rendering large scrollable lists in s&box UI
VirtualGrid — Efficiently Rendering Large Lists in UI is a s&box UI panel that virtualizes a large collection — only the visible cells are created in the DOM. S…
s&box Ownable: Ownership tracking component
Ownable Component API Reference Ownable is a Component that tracks which Connection (player) spawned a GameObject, enabling prop protection and ownership checks…
s&box PhysicalProperties: Physical property persistence
PhysicalProperties Component API Reference PhysicalProperties is a Component that persists physical properties (mass, gravity, health) across duplication and ne…