Install

Download

After your purchase clears on SellAuth, you'll receive an email with your license key and a download link. The loader is delivered as a small zip archive (about 8 MB) containing:

• Nimbus.exe — the loader UI
• Launch Nimbus.bat — a helper launcher with verbose logging
• A payload/ folder we populate at first launch

The download link is keyed to your account and expires after 7 days. If it expires, sign in to the dashboard and pull a fresh link from the Downloads section.

Where to put it

Pick a folder you own. Do not drop the loader into:

• C:\Program Files\ or C:\Program Files (x86)\ — UAC slows every launch and some payload features need write access next to the exe.
• Your Marvel Rivals install directory — the loader is not meant to be next to the game, and modifying that folder is the kind of thing anti-cheat watches for.
• A OneDrive / Google Drive mirror — cloud sync will corrupt the payload while it's loaded.

A good default: C:\Tools\Nimbus\ or %USERPROFILE%\Apps\Nimbus\.

Unblock the .zip

Windows attaches a "Mark of the Web" tag to anything you download. Until you remove that tag, SmartScreen will hassle every launch.

1. Right-click the zip you downloaded, choose Properties.
2. Tick the Unblock checkbox at the bottom of the General tab.
3. Click Apply, then extract the zip into your chosen folder.

If you skip this step, expect a "Windows protected your PC" prompt on first launch. Click More info then Run anyway.

Verify the install

After extracting, your folder should contain at minimum:

Nimbus/
  Nimbus.exe
  Launch Nimbus.bat
  payload/
    (populated on first launch)
  config/
    (your settings — created on first launch)

You're done. Continue to First run.