System Requirements - s&box Documentation
System Requirements Recommended OS: Windows 10 or Windows 11 Processor: Quad-core processor Memory: 16 GB RAM Graphics: NVIDIA GTX 1060 or AMD RX 580 Storage: 5…
Network Ownership: Taking, Dropping, and Transferring Object Control
Networked GameObjects can be owned by a connection. Objects owned by a connection are simulated by that connection — their position and sync variables are contr…
RPC Security: How s&box Validates Incoming RPCs — Attribute Check, Permission Flags, Kick on Unauthorized
RPC Security: How s&box Validates Incoming RPCs Understanding how s&box validates incoming RPCs is important for writing secure multiplayer code. Validation Ste…
Physics joints — Fixed, Ball, Hinge, Slider, Spring, and Wheel
Physics Joints Joints connect two physics bodies together with constraints. All joint types are components added to a GameObject positioned at the joint's ancho…
Console Variables and Commands: ConVar and ConCmd Runtime Configuration
s&box provides console variables () and console commands () for runtime configuration and debugging. Console Commands Static methods with attribute: Server Comm…
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…
LocalData persistence for server-side data
LocalData Persistence in s&box LocalData provides server-side data persistence that survives server restarts. It's useful for storing configuration, ban lists, …
ControlSystem: Vehicle seat control with IPlayerControllable
ControlSystem: Vehicle Seat Control with IPlayerControllable This example shows the ControlSystem which manages vehicle seat control, sorting seats by occupatio…
Dedicated Server User Permissions: Claims-Based Access Control via Steam ID
On s&box Dedicated Servers, you can specify admin permissions per user via the file using Steam IDs and claims. Configuration Claims Claims are strings describi…
NetworkHelper: Simplified Multiplayer Setup with Player Spawning
The NetworkHelper component simplifies multiplayer setup. It handles server creation, player spawning, and object ownership. Creating a Server Set to true and a…
Sandbox: Hydraulic tool — motorized SliderJoint with LineRenderer shaft
Sandbox Hydraulic Tool — Motorized SliderJoint Constraints The Hydraulic tool creates a between two objects with a component that can extend and retract the joi…
WebSockets
Use WebSockets for real-time communication with external servers. Basic Setup With Auth Token Common Use Cases Custom networking — External matchmaking, chat se…
s&box ManualLink: Logical link component
ManualLink Component API Reference ManualLink is a Component that creates a non-physics logical link between two GameObjects, used by the Linker tool to group u…
LocalData static class: Server-side data persistence
LocalData Static Class API Reference LocalData provides server-side data persistence that survives server restarts. It's useful for storing configuration, ban l…
ActionGraph Component Actions - s&box Documentation
ActionGraph Component Actions Add ActionGraph behavior directly to GameObjects using the ActionGraph component. Component Actions The ActionGraph component lets…
LimitsSystem Per-Player Spawn Limits
LimitsSystem Per-Player Limits Enforces configurable spawn limits per player with automatic tracking via ISpawnEvents. Key Features Per-player tracking via Stea…
CleanupSystem Pattern for Map Reset and Scene Management
CleanupSystem - Scene State Management and Map Cleanup A that captures the baseline scene state and allows resetting the map to its original state. Removes spaw…
Testing Multiplayer: Local Multi-Instance Development Workflow
The best way to test multiplayer is having someone join your game, but s&box provides tools for solo testing. Spawning a New Instance Click the network status i…
Shader Graph Getting Started: Visual Shader Editor in s&box
s&box Shader Graph is a visual scripting language that compiles to shader code. Accessible to beginners and useful for rapid prototyping by experienced shader d…
Prefabs - s&box Documentation
Prefabs Prefabs are reusable GameObject templates that allow you to create consistent, repeatable objects across your game. You create a prefab asset from a Gam…