steam-protos

Pre-generated Rust protobuf bindings for Steam protocol messages, derived from SteamDatabase/Protobufs.

Features

• Pre-generated — no build script, no protoc dependency, instant compilation
• Selective compilation via Cargo feature flags
• Serde support via optional feature (enabled by default)

Installation

[dependencies]

steam-protos = "0.1"

prost = "0.12"

Feature Flags

Usage

Basic Usage

use steam_protos::steam::steammessages_clientserver_login::CMsgClientLogon;
use prost::Message;

// Create a message
let logon = CMsgClientLogon {
    protocol_version: Some(65580),
    ..Default::default()
};

// Encode to bytes
let bytes = logon.encode_to_vec();

// Decode from bytes
let decoded = CMsgClientLogon::decode(bytes.as_slice()).unwrap();

Module Structure

steam_protos
├── steam/       # Core Steam client messages (108 modules) - feature: "steam"
├── csgo/        # CS:GO game coordinator messages (41 modules) - feature: "csgo"
└── webui/       # Steam Deck/WebUI messages (118 modules) - feature: "webui"

Note: Modules are only available if their corresponding feature is enabled.

Key Steam Modules

Example Imports

// Login messages
use steam_protos::steam::steammessages_clientserver_login::{
    CMsgClientLogon, CMsgClientLogonResponse,
};

// Authentication
use steam_protos::steam::steammessages_auth_steamclient::{
    CAuthenticationBeginAuthSessionViaCredentialsRequest,
    CAuthenticationGetPasswordRSAPublicKeyRequest,
};

// Friends
use steam_protos::steam::steammessages_clientserver_friends::{
    CMsgClientFriendsList, CMsgClientPersonaState,
};

// Two-Factor Auth
use steam_protos::steam::steammessages_twofactor_steamclient::{
    CTwoFactorAddAuthenticatorRequest, CTwoFactorAddAuthenticatorResponse,
};

License

MIT