SteamFlow

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A custom, lightweight Steam launcher and client written in Rust.

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# SteamFlow
A custom, lightweight Steam launcher and client written in Rust.

SteamFlow is the modern successor to the OpenSteamClient project, leveraging Rust for performance, safety, and a better developer experience. It uses `steam-vent` for Steam network communication and `egui` for the user interface.

# Current development status
SteamFlow is in active development and serves as the primary project. It has reached a highly functional alpha state, supporting core Steam features like authentication, library management, game installation/updates, and cloud synchronization.

## SteamFlow Roadmap
- [x] **Authentication**
  - [x] Login with password
  - [x] Steam Guard (Email/Device codes)
  - [x] Steam Guard Mobile App confirmation
  - [x] Session restoration (Refresh tokens)
- [x] **Library**
  - [x] Fetch owned games from Steam
  - [x] Scan local installed games
  - [x] Display game covers (automated caching)
  - [x] Basic game launching
  - [x] Search & Filtering
- [x] **Installation & Updates**
  - [x] Download pipeline (Manifest -> Security -> Chunks)
  - [x] Update management
  - [x] Uninstall support
  - [x] Verify Integrity
- [ ] **Features**
  - [ ] Collections / Categorization
  - [ ] Friends list & Chat
  - [x] Steam Cloud integration
  - [ ] Workshop management
  - [x] Proton/Wine integration improvements
  - [x] Depot browser (Download specific builds/files)

# Getting Started
## Prerequisites (Linux)
Ensure you have the following system dependencies installed (Ubuntu 24.04 example):
```bash
sudo apt-get update
sudo apt-get install build-essential pkg-config libssl-dev libx11-dev libxi-dev libxrandr-dev libxinerama-dev libxcursor-dev libxkbcommon-dev libasound2-dev libudev-dev libwayland-dev libgtk-3-dev libpulse-dev libdbus-1-dev libegl1-mesa-dev libgles2-mesa-dev liblzma-dev
```

## Build and Run
1. Clone the repository:
```bash
git clone https://github.com/weter11/SteamFlow.git
cd SteamFlow
```
2. Build and run:
```bash
cargo run --release
```

## Configuration
SteamFlow stores its configuration and local data in `./config/SteamFlow` relative to the executable.
- **Library Path:** By default, SteamFlow attempts to detect your existing Steam installation. You can manually override this in the **Settings** panel within the application.
- **Session:** Encrypted refresh tokens are stored in `session.json` to allow automatic login on subsequent launches.
- **Unified Download Pipeline:** All game installations, updates, and integrity verifications use a robust, single-engine architecture for maximum reliability and speed.

# Features & Goals
- **No Web Technology:** Unlike the official Steam client, SteamFlow does not use CEF or WebViews for its core interface, making it extremely lightweight.
- **Fast and Responsive:** Built with Rust and `egui` for a native, snappy experience.
- **Privacy Focused:** Open-source implementation of Steam protocols.
- **Linux First:** Great support for Linux, including 64-bit clean architecture and better Proton management.

---

# Contributing
See [CONTRIBUTING.md](CONTRIBUTING.md) for guidelines.

# Acknowledgments
Special thanks to the developers of **OpenSteamClient** and **steam-vent** for their invaluable reverse-engineering documentation.

# Credits
- [OpenSteamClient](https://github.com/OpenSteamClient/OpenSteamClient) - Original project and resource base
- [steam-vent](https://github.com/n00b67/steam-vent) - Steam protocol implementation
- [egui](https://github.com/emilk/egui) - Immediate mode GUI library
- [open-steamworks](https://github.com/SteamRE/open-steamworks) - Research resources

# Q&A
## Is this a full replacement for Steam?
SteamFlow aims to provide a lightweight alternative for launching games and managing your library. Some features like VAC-secured games or ISteamHTMLSurface (Source engine MOTDs) may never be supported due to proprietary limitations.

## Is it safe to use?
SteamFlow uses official Steam protocols. However, it is a 3rd-party client and is not endorsed by Valve. Use at your own risk.

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