Download RivalNxt - Working Mod Manager for Marvel Rivals

The only working mod manager for Marvel Rivals Season 5.5.

FEATURES

Advanced Mod Control – Easily enable, disable, and organize mods individually or in bulk
Conflict Handling – Automatically identifies mod conflicts and resolves them through tag rebuilding
Automatic Game Detection – Finds the Marvel Rivals installation directory using Steam and Epic Games registry data, along with archive utilities like 7-Zip and WinRAR
One-Click Mod Downloads – Supports “Download with Mod Manager” on NexusMods for instant download and installation
Background Operations – Processes downloads automatically through the NXM protocol without requiring user input

Local-First Storage – Uses a portable SQLite database with built-in health checks and inspection tools
Rust-Based Engine – Powered by a native Rust rust-ue-tools library, connected to Python via PyO3 and Maturin
Modern Architecture – Built with Tauri 2 for the desktop shell, React + Vite for the frontend, and FastAPI with Python for the backend
Automated CI/CD – GitHub Actions handle automated builds and release workflows
Simple Build Process – Includes a complete build script for fast and easy local development

Seamless Browser Integration – Clicking “Download with Mod Manager” on NexusMods automatically launches RivalsNxt
NXM Protocol Support – Two-way communication using Windows registry integration
Automated Downloads – Managed in the background by the NxmBackgroundListener component
API Connectivity – Retrieves mod metadata and provides update alerts
Built-In Testing Tools – Includes utilities to validate protocol functionality

Python Interoperability – Python bindings created with Maturin for smooth integration
High Performance – Replaces slower Python scripts and external tools with native Rust processing
PAK and UTOC Handling – Reads and extracts Unreal Engine files without relying on external CLI tools
AES Decryption – Supports encrypted mod archives out of the box
Parallel Processing – Efficiently handles multiple mod files at the same time
Archive Compatibility – Works with ZIP and RAR archives containing mod data

Download the archive.
Open it and start installation process.
After installation, run the mod manager. Your Marvel Rivals folder should be picked up automatically. If not, you can edit it in the mod’s setup menu or in the settings (along with other file paths).