Explore the Engine - s&box Documentation
Explore the Engine Learn how s&box works by exploring the testbed and understanding the core concepts. Play Testbed Start s&box (not the editor) and find the ga…
Custom Snapshot Data: INetworkSnapshot for s&box Joining Client Data Transfer
s&box Components can write and read custom data during the network snapshot process by implementing . The snapshot is sent to clients when they join a s&box mul…
PolygonMesh — procedural block meshes with per-face materials and vertex editing
PolygonMesh — Procedural Block Meshes s&box includes a API for creating and editing meshes at runtime or in editor tools. The editor's block mesh tools use this…
Physics Triggers: Enter, Exit Events and Polling in s&box
A trigger is a collider that detects when physics objects enter or exit it without blocking movement. Useful for pickup zones, death planes, checkpoints, and ar…
Download & Install - s&box Documentation
Download & Install Install Purchase s&box on Steam Install it via your Steam Library Launch s&box Launch After launching s&box, you will be presented with a men…
Getting Started - s&box Documentation
Getting Started S&box is coded in C#. Under the hood, it uses the Source 2 engine (CS2, HL:Alyx, DOTA2) and some of its systems: rendering, resources, physics, …
Localization: Token-Based Multi-Language UI Text in s&box
s&box supports localization through token-based string replacement. Any displayed string beginning with is recognized as a localization token and replaced with …
Your First Project - s&box Documentation
Your First Project Creating Game Objects In s&box, everything in your scene is a GameObject. GameObjects can have Components attached to them that provide funct…
Tracing - s&box Physics Documentation
Tracing Tracing (raycasting) is the primary way to query the physics world in s&box. It allows you to cast rays or shapes through the scene to find collisions w…
s&box SpriteRenderer: Billboard Modes, Animation Control, Broadcast Events, and Rendering Options
s&box SpriteRenderer: Animated Sprites, Billboard Modes, and Broadcast Events renders a asset in the s&box world with support for animation, billboarding, and f…
WebSocket Connections with Auth Token Authentication in s&box
s&box supports WebSocket connections to external servers for custom networking or persistent data outside the local filesystem. Basic Connection and Messaging U…
Code Basics - s&box Documentation
Code Basics C# is the primary programming language for s&box. The engine uses modern .NET with hotloading support, allowing you to see code changes instantly wi…
s&box Input System: Down, Pressed, Released, AnalogLook, AnalogMove, Input Contexts, and Suppression
s&box Input System: Actions, Contexts, and How Input State Works The s&box static class provides all player input querying. Actions are defined in the project's…
s&box Easing Functions: Sandbox.Utility.Easing — Quadratic, Exponential, Bounce, Sine, and CSS-Style Name Lookup
s&box Easing Functions: Sandbox.Utility.Easing for Transitions and Animations provides standard easing functions used throughout s&box's UI system and available…
Scene.Trace: Raycasting, Shape Sweeps, Tag Filters, SceneTraceResult Fields, and FindInPhysics
Scene.Trace: Raycasting and Shape Sweeps in s&box is the entry point for all physics traces in s&box. It returns a builder that uses a fluent API. Basic Usage F…
Triggers: Non-Blocking Collision Detection with ITriggerListener
A trigger is a collider that detects when other physics objects enter or exit it without blocking their movement. Useful for pickup zones, death planes, checkpo…
s&box Sandbox Security Model: Assembly Whitelist, Blocked APIs, Reflection Restrictions, and Safe Assembly Caching
s&box Sandbox Security Model: Assembly Access Control and Whitelisted APIs s&box uses a whitelist-based security model to prevent game code from accessing dange…
Reporting Errors - s&box Documentation
Reporting Errors How to report bugs and issues with s&box. Issue Tracker Report bugs on the s&box issue tracker: Search existing issues first Create a new issue…
Networking State in s&box: IsHost, IsClient, IsActive, and Lobby Management
Networking State in s&box: IsHost, IsClient, IsActive Understanding the networking state is critical for writing correct multiplayer code in s&box. Key Properti…
s&box Component Lifecycle: Exact Execution Order and Internal Guards
s&box Component Lifecycle: Exact Execution Order and Internal Guards Derived directly from and in the s&box engine source. Execution Order **** — Called once wh…