ARCTracker Sync

ARCTracker Sync keeps your ARCTracker inventory up to date while you play ARC Raiders. It signs you into ARCTracker, helps you start the game from Steam or Epic, and then connects your game account so ARCTracker can sync your inventory automatically in the background.

It runs as a small desktop app — a polished Windows build with a tray icon, plus a build-from-source option for Linux (ARC Raiders via Proton). Once it's set up, you mostly leave it alone — open it, start your game, and play.

License: ARCTracker Sync is free for noncommercial use under the PolyForm Noncommercial License 1.0.0. Commercial use requires a separate license — contact matt@arctracker.io. See License below.

Installing

1. Download the latest arctracker-sync-<version>-windows-x64.zip from the Releases page.
2. Unzip it anywhere and run arctracker-sync.exe.

The app is currently unsigned, so Windows SmartScreen may warn you the first time you run it. It also asks for Administrator permission on launch (see Why it needs Administrator).

Once installed, ARCTracker Sync updates itself: it checks for new releases on GitHub and, when you approve, downloads and installs them. Each download is verified against a published checksum before it's applied.

Requirements

• Windows 10 or 11, 64-bit.
• ARC Raiders on Steam or the Epic Games Store.
• An ARCTracker account.

Using it

1. Sign in to ARCTracker. The app opens your browser to sign in, then remembers you using Windows Credential Manager so you don't have to sign in every time.
2. Choose your launcher. Pick Steam or Epic. Steam can launch ARC Raiders directly; for Epic you may need to point the app at the game once.
3. Prepare and launch. The app gets your launcher ready, then you start ARC Raiders from Steam or Epic as usual.
4. Play. While you play, ARCTracker Sync connects your game account and ARCTracker keeps your inventory in sync. The main screen shows your sign-in, game selection, launch, connection, and sync status at a glance.

Troubleshooting details are tucked away by default — you can open them if you need to dig into what's happening. For more help, see https://arctracker.io/help/sync.

Your privacy

ARCTracker Sync does not store your ARC Raiders / game-account credentials on your machine. Setup data stays local, and the only thing it sends to ARCTracker is the account-connection update needed to keep your inventory in sync. Your ARCTracker sign-in is kept in Windows Credential Manager.

Why it needs Administrator

To notice your game account connecting, ARCTracker Sync watches your own computer's network traffic using raw sockets, which the OS only allows with elevated privileges. On Windows that means Administrator rights; on Linux it means the CAP_NET_RAW capability (granted with a one-time setcap, or by running as root) — see Linux. By default there's no kernel driver, bundled network library, or extra capture tool to install — and it only ever looks at traffic on your own machine.

Optional: Npcap capture

Some antivirus products (Avast Web Shield, for example) interfere with raw-socket capture. If sync won't connect on your machine, Settings → Network lets you switch the capture method to Npcap, a separately installed packet-capture driver from https://npcap.com. ARCTracker Sync never bundles, downloads, or installs Npcap — its license forbids redistribution — so if you select Npcap without installing it, the app tells you and links to npcap.com. With Npcap selected, the app loads Npcap's wpcap.dll at runtime and captures through Npcap's kernel driver instead of raw sockets. It still only looks at traffic on your own machine, and Administrator is still required.

---

Building from source

You don't need to build the app to use it — grab a release above. To build it yourself:

Prerequisites:

• A stable Rust toolchain on the MSVC target (install via rustup).
• Windows 10 or 11, x64.

From the repository root:

cargo build --release
cargo run

The app ships a manifest that requests elevation, so it runs as Administrator (required for the raw-socket capture described above). No kernel driver or external tooling is needed for the default raw-socket capture; the optional Npcap capture method uses Npcap's driver, installed separately by the user.

Linux (ARC Raiders via Proton)

Windows is the primary, prebuilt target. Linux is supported as a build-from-source option for running ARC Raiders through Proton — there is no Linux release binary.

Prerequisites:

• A stable Rust toolchain (install via rustup).
• The GUI's system libraries: GTK 3, libxdo, and the Ayatana app-indicator (libgtk-3-dev, libxdo-dev, libayatana-appindicator3-dev on Debian/Ubuntu; the equivalents on your distro).
• ARC Raiders on Steam (the Epic launcher isn't supported on Linux).

From the repository root:

./scripts/run-linux.sh

That builds the release binary, grants it CAP_NET_RAW with a one-time sudo setcap cap_net_raw+ep (so the GUI itself runs unprivileged, the Linux equivalent of the Windows Administrator requirement), and launches it.

See docs/LINUX.md for how capture works under Proton, the SSLKEYLOGFILE setup, a capture smoke test, and current caveats.

Contributing

Bug reports, feature ideas, and pull requests are welcome. See CONTRIBUTING.md for how to get started and for the contribution license terms.

To report a security vulnerability, please follow SECURITY.md rather than opening a public issue.

License

ARCTracker Sync is source-available under the PolyForm Noncommercial License 1.0.0.

• Noncommercial use is free. Personal use, hobby projects, research, education, and other noncommercial purposes are permitted at no charge.
• Commercial use requires a separate license. Contact matt@arctracker.io to arrange one.

This is a source-available license, not an OSI-approved "open source" license, because it restricts commercial use.

The bundled vendor/pcapsql-core library is third-party software under the MIT License. Other dependencies retain their own licenses. See THIRD-PARTY-NOTICES.md for details.

Copyright 2026 RaidTheory LLC · https://arctracker.io