Built in
Replay auto-upload
Watches your StarCraft II replay folder and uploads new games as you finish them. Your dashboard, MMR trend and build stats stay current without a single drag-and-drop.
Vespene
Back to the app
Desktop companion · Windows
One install. Three things you can't do in a browser.
Vespene Companion sits quietly beside StarCraft II. It uploads every replay the moment you leave the game, runs your builds live on top of the game with Build Coach, and logs the pros you study with Stardex. Free, and it stays in the tray.
What comes with it
Companion is the host. Stardex and Build Coach are addons that live inside it — you never download them separately, and Companion keeps them updated for you.
Addon
Build Coach
Run any build live, in-game, with a step-by-step overlay that tracks your supply as you play. It reads the SC2 client directly — no screen capture, no OCR, no alt-tabbing.
Addon
Stardex
Study a pro mid-game and log their card — building a dex of the best openers and habits on ladder. Everything you collect syncs back to your account here.
Windows will warn you. Here's why, and what to click.
You'll see a blue Windows protected your PC dialog when you run the installer. This is expected — it happens with every new publisher's software until we've built reputation with Microsoft's SmartScreen filter.
SmartScreen is a reputation check, not a virus scan. Your antivirus
still runs normally — it will let the installer through because the
file itself is clean. We're working toward a code-signed release,
which will remove this warning entirely.
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Click More info
When the blue "Windows protected your PC" dialog appears, look for a small grey More info link just below the warning text. It's easy to miss — the big "Don't run" button is more prominent by design.
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Click Run anyway
Expanding More info reveals the publisher name and a new Run anyway button. Click it to continue — this grants the installer permission to launch.
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Follow the installer
The NSIS installer opens and walks you through setup. No admin password is required — it installs per-user into %LOCALAPPDATA%\Programs\SC2Tree. Uninstalls cleanly from Windows Settings.
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Sign in once
On first launch, the app opens your browser to sign in with the same account you use here. If you're already signed in on vespene.gg, the handoff is instant — no second login.
Verify the installer. If you want to confirm
the file is authentic before running it, compare its SHA-256
checksum against the value below. In PowerShell:
Get-FileHash SC2Tree-Setup.exe
SHA-256 checksum
…
How it behaves once it's running
- Background only Lives in your system tray. No window, no popups, no interruptions while you're laddering.
- Lightweight Around 60 MB of RAM idle and almost no CPU. Quit it from the tray any time.
- Zero-bounce sign-in Uses your existing web session — no re-entering a password on the desktop.
- Updates itself Companion and its addons pull their own updates. You install once and stay current.
- Private to you Only your own replays are uploaded, to your own dashboard. You control what stays public.
System requirements
- Windows 10 or later (64-bit). Windows 11 fully supported.
- 200 MB free disk space for installation.
- Internet connection for sign-in and replay uploads.
- StarCraft II installed with a standard replay folder (Documents\StarCraft II\Accounts).
macOS and Linux builds are on the roadmap but not yet available.