Mod Organizer 2 for Windows

Streamlined mod management for Fallout and similar titles

Mod Organizer 2 (MO2) is a dedicated mod manager built to handle modern 64-bit games — notably Fallout and Skyrim Special Edition — while still respecting support for older 32-bit titles through prior tools. It simplifies organizing, experimenting with, and switching between large mod collections so you can focus on gameplay instead of file juggling.

Under-the-hood: how it keeps mods tidy

MO2 uses a virtual file system that presents your active mods to the game as if they were placed in the game's Data folder, while actually keeping each mod in its own separate directory. That separation makes it possible to add or remove individual mods quickly without permanently altering the original game files, and to toggle mods on and off without breaking your installation.

Notable capabilities

• Per-mod installation and removal that minimizes the risk of corrupting game files
• A virtual file system that isolates mod data from the base game
• Support for multiple game profiles so you can maintain different mod setups simultaneously
• Fast enable/disable switching so you can test modifications during play

Where MO2 shines

• Managing large or complex mod collections across multiple games
• Running live tests of new mods without committing changes to the core installation
• Keeping mod files organized and reversible to prevent conflicts or unwanted overwrites
• Supporting both modern 64-bit titles and legacy 32-bit workflows through compatibility features

Summary

Mod Organizer 2 is a comprehensive tool for players who want greater control over their modded experience. It reduces the manual work of file management, makes testing mods straightforward, and helps preserve your base game while you experiment.