Oblivion mod manager (OBMM) for Windows

Tool overview

Oblivion Mod Manager (often shortened to OBMM) is a free utility created by Timeslip for managing mods and plugins for The Elder Scrolls IV: Oblivion. It simplifies installing, organizing, and distributing community content, making it useful for casual players and experienced modders alike.

Standout functions

• Detects and reports conflicts between installed mods so you can resolve compatibility issues.
• Unpacks BSA archives to expose assets for editing or inspection.
• Helps manage and transfer save files between installations.
• Can launch Oblivion directly, letting you start the game with chosen mod configurations.
• Packages mods and plugins into distributable files for sharing with others.
• Provides a simple self-install option that places the program in the default location and sets up shortcuts and file associations.
• Generates an archiveinvalidation.txt file to ensure loose files override archived assets when needed.
• Requires Microsoft .NET Framework 2.0 to run on Windows systems.

Installation and system requirements

OBMM includes a self-installer that places the program in the default folder and configures necessary associations and shortcuts automatically. Make sure .NET Framework 2.0 is present on your PC before installing—some features and certain mods depend on it.

About The Elder Scrolls IV: Oblivion

Released in 2006 by Bethesda, Oblivion is an open-world action-RPG set in the province of Cyrodiil. The main plot follows the Hero of Kvatch as they oppose the Mythic Dawn cult, which seeks to open gates into the demonic realm called Oblivion. Its expansive world and moddable structure have produced a large, active modding community over the years.

Why use a mod manager for Oblivion

Because Oblivion supports a wide variety of mods, tools like OBMM make it far easier to keep dozens of additions organized and working together. Beyond installation, the manager helps you detect conflicts, create redistributable packages, and handle file overrides—tasks that become tedious and error-prone when done manually. If you’re getting started with Oblivion modding, OBMM is a practical, lightweight place to begin.