Nimbus
Getting started

Launch & inject

How to get from a green loader to an active overlay inside a Marvel Rivals match.

Click "Launch Nimbus"

With the loader signed in:

  1. Make sure Marvel Rivals is closed before you click Launch. The inject watcher is designed to attach to a freshly-spawned game process; attaching mid-match can race the anti-cheat init.
  2. Click the big Launch Nimbus button on the Launch tab.
  3. The loader switches into watcher mode and minimizes to tray.

You can also run Launch Nimbus.bat directly — it sets the same flags the GUI button does, plus prints verbose logs to a console window for support.

How the inject watcher works

Once armed, the loader sits in the background polling for Marvel-Win64-Shipping.exe to appear. It does not auto-launch the game for you — start the game like normal from whichever platform you own it on (Steam or Epic Games Store). The loader auto-detects both and watches for the same Marvel-Win64-Shipping.exe process either way.

When the watcher sees the game process spawn, it:

  1. Waits for the game to fully load shaders and reach the title screen (about 30–60s on a SATA SSD, faster on NVMe).
  2. Drops the payload DLL into the game's Engine\Binaries\ThirdParty\Ogg\Win64\VS2015\ folder under the name libogg_64.dll.
  3. The game itself, while initializing audio, naturally loads libogg_64.dll — that's the hijack vector. The DLL is mapped into the game's address space without any external injection call.
  4. Once the payload is live, the loader self-deletes the disk file. Section-object refcounts keep the in-memory copy alive for the session.

This whole sequence is automatic — you don't have to do anything past clicking Launch.

When inject actually happens

The earliest you'll see the overlay menu is at the title screen ("Preloading Other Shaders"). Most players see it during the post-loading hero select.

If the loader is still showing "Waiting for Marvel Rivals…" after the game has been at the title screen for more than 90 seconds, check Inject failed.

Open the in-game menu

Default open-menu key: Insert.

You can rebind in Settings → Hotkeys inside the in-game menu — not the loader. The loader settings are for the out-of-game stage; the in-game menu has its own settings for the overlay itself.

Up next: Choosing a hero.