repak-rivals

repak-rivals is a Marvel Rivals mod packaging and install toolset.

Use repak-gui by default. It is the intended workflow for current Marvel Rivals mods.

repak_cli is mainly for pak inspection and pak-only workflows. It does not generate .utoc / .ucas, is not the preferred option for modern Rivals mods, and should only be used if you already understand the packaging constraints.

Install

1. Download the latest release from Nexus Mods: https://www.nexusmods.com/marvelrivals/mods/1717
2. Launch repak-gui.
3. Confirm the detected Marvel Rivals mod folder.
4. Drag in mods, archives, or mod folders, or use File -> Install mods / File -> Pack folder.
5. Install the generated output into the ~mods directory.

Features

• GUI-first workflow for Marvel Rivals mod installation
• drag-and-drop support for .pak, .zip, .rar, and mod folders
• automatic detection of the Marvel Rivals mod directory
• IOStore generation for modern mods
• pak repacking for audio and movie patches
• mesh-fix support for custom model mods
• batch install flow with per-mod options
• installed mod browser with enable, disable, and delete actions
• pak content viewer with extract, copy path, copy offset, and hash actions
• mod type detection for character, UI, audio, and movie mods
• Windows and Linux release builds

Latest Changelog

v2.8.2 - 2026-03-11

• made internet-dependent behavior optional
• improved flake.nix support

v2.8.1 - 2026-02-06

• fixed the GUI update check

v2.8.0 - 2026-02-06

• made update checks mandatory
• refreshed skin data
• moved mesh directory fetching into the background

v2.7.0 - 2026-02-05

• added release-mode fetching for latest skin data

CLI Help

$ repak --help
Usage: repak [OPTIONS] <COMMAND>

Commands:
  info       Print .pak info
  list       List .pak files
  hash-list  List .pak files and the SHA256 of their contents. Useful for finding differences between paks
  unpack     Unpack .pak file
  pack       Pack directory into .pak file
  get        Reads a single file to stdout
  help       Print this message or the help of the given subcommand(s)

Options:
  -a, --aes-key <AES_KEY>  256 bit AES encryption key as base64 or hex string if the pak is encrypted [default: 0C263D8C22DCB085894899C3A3796383E9BF9DE0CBFB08C9BF2DEF2E84F29D74]
  -h, --help               Print help
  -V, --version            Print version