Latest Build
Unzip and launch Rivai.exe.
Skim the install guide before you run it for the first time.
Launcher (Recommended)
The launcher checks the manifest automatically and downloads, verifies, and runs the latest build for you — no more grabbing fresh zips by hand.
macOS Gatekeeper may block the first launch — right-click in Finder → "Open" to allow it once. See Known Issues for details.