Platform Chat - Built-in Multiplayer Text Chat System
Built-in text chat for multiplayer games. Messages are routed through the host, validated, filtered, and displayed via the standard overlay UI - no game code re…
Steam filtering API for user content sanitization
Steam Filtering API in s&box s&box provides Steam filtering APIs to sanitize user-generated content like names and chat messages. This helps prevent profanity, …
RPC Messages - s&box Documentation
RPC Messages Components can contain RPCs. An RPC is a function that when called, is called remotely too. Supported RPC arguments are the exact same as Sync prop…
Platform Chat: Built-in Text Chat with IChatEvent Filtering
s&box includes a built-in platform chat system for multiplayer games. Messages are routed through the host, validated, filtered via Steam's text filter, and dis…
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…
WebSockets: External Server Communication with Auth Token Support
s&box allows WebSocket connections to interface with external servers. Common uses include custom networking and persistent data storage outside the local files…
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…
Connection Class: Local, Host, All, Find, Permissions, Kicking, and Visibility Origins
Connection Class: Local, Host, All, Find, and Permissions represents a network connection to a player. It's the primary way to identify and interact with player…
s&box SceneNetworkSystem: Scene Loading and Snapshot Protocol
s&box SceneNetworkSystem: Scene Loading and Snapshot Protocol is the core networking system that manages scene loading, object spawning, and snapshot synchroniz…
RPC Messages: Broadcast, Owner, Host with Filtering and Caller Info
Components can contain RPCs — functions that when called locally, are also called remotely. Supported RPC argument types are the same as Sync properties. Basic …
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…
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…
Rpc.FilterInclude for targeted RPC broadcasting
Rpc.FilterInclude for Targeted RPC Broadcasting Rpc.FilterInclude is a using statement in s&box that restricts RPC broadcasts to specific connections only. This…
Async Tasks and Coroutines in s&box Components
Async tasks in s&box run on the main thread by default, operating like coroutines. They are the recommended replacement for coroutines. Basic Async Method Frame…
Doo: Visual Scripting Tasks — Running, Stopping, and Exposing Methods
Doo: Visual Scripting Tasks on Components is s&box's visual scripting system. A is a serializable list of executable blocks that can be run on a component. It i…
RPC Messages: Remote Procedure Calls with Broadcast, Owner, and Host Targets
Components can contain RPCs (Remote Procedure Calls). An RPC is a function that when called, is also called remotely on other clients. Broadcast RPC makes a fun…
Game Static Class: ActiveScene, ChangeScene, TypeLibrary, Cookies, and Core State Properties
Game Static Class: ActiveScene, ChangeScene, TypeLibrary, and Core State The static class is the primary entry point for global game state in s&box. Core State …
Async Components: Coroutine-Style Async Tasks on the Main Thread
Async tasks in s&box run on the main thread by default, operating like coroutines. They are the recommended replacement for coroutines in s&box. Basic Async Fra…
CodeGenerator: Compile-Time Method and Property Wrapping via Attributes
The attribute in s&box lets you create custom attributes that wrap methods and properties at compile time. This is the mechanism behind properties and — you can…
RPC Attributes: Rpc.Broadcast, Rpc.Host, Rpc.Owner — Targeting, NetFlags, and Rpc.FilterInclude/Exclude
RPC Attributes: Rpc.Broadcast, Rpc.Host, Rpc.Owner — Targeting and Flags s&box RPCs are declared with nested attributes on the static class. The old top-level a…