Download the launcher
The launcher runs your game and links it to the run — you install it once, then pair it to your lobby from the web.
Download for Windows
.exe installer · Windows 10/11
What happens next
- Run the installer. Windows SmartScreen will flag the publisher as unverified — that is expected for the Alpha build, which is not code-signed yet. Click More info → Run anyway: it is an unsigned build, not a dangerous one.
- Open the launcher and point its ROM library at your legally-owned GBA games. It verifies each dump locally and never uploads one.
- Back in the browser, open your lobby and use Pair a launcher to connect it — a QR code and a short pairing code, good once.
- Launch. The launcher randomizes your run locally and starts the game.
Requirements & notes
- Windows 10 or 11, 64-bit.
- One download — the launcher fetches its emulator and tools on first setup, hash-verified, once per machine.
- You bring your own games. The platform never ships ROMs — not now, not ever.
More help: Launcher help · Getting started.
Windows is the only build today — the emulator the launcher drives runs there first. macOS and Linux land later; there is nothing to download for them yet.