Marvel Rivals UTOC Signature Bypass (Enable Mod Loading) Mod v1.0

                    
Die Marvel Rivals Mod UTOC Signature Bypass Patch removes the game’s UTOC signature gate so the client accepts IO‑Store .pak/.utoc/.ucas content without companion .sig files. It’s a utility mod for experienced tinkerers who want to load updated cosmetics or UI tweaks and keep their mod stack stable after the file format changes introduced in 2025.
What this Marvel Rivals Mod changes

Signature check disabled: Bypasses UTOC signature validation so the game loads custom PAKs without .sig files.
IO‑Store compliance: Requires mods converted to the newer utoc/ucas layout. Old one‑file .pak releases made before April 2025 will not work and can crash at boot.
Season‑compatible: Built for current Marvel Rivals builds and the modern packaging workflow.
Deck/Linux support: Works under Proton with a simple launch‑option override for the ASI loader DLL.

In‑game impact and use cases
This isn’t a gameplay overhaul; it’s the key that lets other Marvel Rivals Mods actually load. If installing cosmetics, HUD edits, or audio swaps, this patch is the first dependency to put in place.

Cosmetics and UI: Load updated skins, effects, or interface tweaks packaged in the three‑file format.
Mod maintenance: Safely audit old releases and delete legacy files before launch to avoid startup crashes.
Steam Deck testing: Use the Proton launch override to get the ASI loader recognized for modding sessions.

Installation & Voraussetzungen
Follow these steps carefully and keep backups. Mixing old and new packages is the fastest way to trigger boot failures.

Prep the game: Remove any legacy Season 1 .pak mods that lack .utoc/.ucas. They will fail under the new system and may crash the client at boot.
Open game files: In the client, right‑click Marvel Rivals and choose Browse local files.
Navigate to the Win64 folder: Go to:…\MarvelRivals\MarvelGame\Marvel\Binaries\Win64\
Install the patch files: Extract the patch archive directly into the Win64 directory beside the game EXE so the ASI loader and related files sit next to it.
Epic install path example:C:\Programs\Epic Games\MarvelRivalsjKtnW\MarvelGame\Marvel\Binaries\Win64\
Steam Deck/Linux: Add this to the game’s launch options:WINEDLLOVERRIDES=”dsound=n” %command%
First boot: Launch into a safe area or training, then verify custom assets appear. If the game crashes or behaves oddly, fully delete the install and re‑verify to clear leftover Season 1 files, then repeat the steps.

Troubleshooting tips

“Virus detected” warning: Some antivirus tools flag generic ASI loaders. The files are clean; add an exception if needed.
Old mods not loading: Repack or grab updates that provide the triple file set .pak/.utoc/.ucas. Single‑file .pak releases from early versions are no longer supported.
Deck won’t hook: Recheck the WINEDLLOVERRIDES parameter and ensure the files sit in …\Binaries\Win64\.