Mod Organizer 2 is a must-have tool for modding Bethesda games like Skyrim, Fallout 4, and Fallout 76 on PC. It provides a centralized, clean interface to install, manage, and customize mods.
Key features of the Mod Organizer 2 include mod profiles, LOOT integration, BSA extraction, conflict resolution, and plugin merging. Mod Organizer 2 gives you greater control and stability than other mod managers. Whether you want to install a few mods or heavily mod your game,
| Tool Name | Mod Organizer 2 |
| Size | 135 MB |
| Version | V2.5.1 |
| PC Requirements | Windows 10 and 11 |
| Developed by | Tannin |
| Released Date | 15 December 2016 |
Releases Of The Mod Organizer 2
v2.5.1 RC 2
- Fix crash if no Nexus category is mapped to a MO2 category in the category editor when closing the editor
- Python
- Update string conversion to and from QStrings (fixes crashes with some characters eg. emoji characters)
- Isolate MO2 python from system-installed python modules (fixes startup issues with python plugins)
- Removed the strikethrough appearance for dummy plugins and replaced it with a flag icon (empty box)
- Add detection for Skyrim VR light plugin support SKSE plugin
- Use defined primary source to fetch categories for game plugins with this attribute set
- Should account for any game with no Nexus ID (Nehrim, Enderal) as long as a primary game plugin is defined
- Still need a better solution for categories from secondary game sources
- Updated dependencies
- libloot 0.22.3
- openssl 3.2.0
v2.5.1 RC 1
- Fix crash if no Nexus category is mapped to a MO2 category in the category editor when closing the editor
- Python
- Update string conversion to and from QStrings (fixes crashes with some characters eg. emoji characters)
- Isolate MO2 python from system-installed python modules (fixes startup issues with python plugins)
- Removed the strikethrough appearance for dummy plugins and replaced it with a flag icon (empty box)
- Add detection for Skyrim VR light plugin support SKSE plugin
- Allow TTW to pull Nexus categories from FNV
- Still need a better solution for categories from secondary game sources
- Updated dependencies
- libloot 0.22.3
- OpenSSL 3.2.0
V2.4.4
- Fixed discord invite
- Removed Mass Effect support
V2.4.3
- Added basic game support for: Black and White 2, Daggerfall Unity, NieR:Automata, Nehrim, Starsector, Star Wars: Empire at War, Subnautica, Subnautica: Below Zero, Vampire – The Masquerade: Bloodlines, Dragon Age 2, Grand Theft Auto: The Trilogy – Definitive Edition, Mass Effect Legendary Edition. Valheim.
Warning: this can be extremely basic in some cases. - Added support for detecting Origin games (see GameOriginManifestIds in game_da2.py`).
- Added support for bypassing Origin DRM (see GameOriginWatcherExecutables in game_da2.py).
- Oblivion: Added setting to allow Nehrim downloads.
- Skyrim VR: Added setting to allow Enderal and Enderal SE downloads.
- Added feature to scrub potential personal information from logs.
- Added setting to “Show menubar when pressing Alt” (enabled by default).
- TTW: Fixed script extender plugin checker.
- Fallout games: Fixed possible issues with profile-specific files.
- All Bethesda games: Fixed possible issue with locating the My Games directory.
- All Bethesda games: Fixed the fact that “foo.asdf__esp” would be considered an .esp file.
- All Bethesda games: Fixed issues related to plugin names with period in them, e.g., “foo2.0.esp”.
- Fixes to downloading from Nexus.
- Fixes for detecting updates from Nexus.
- Fixed download status not ordering by newest files first.
- Various fixes to the OMOD installer.
- Fixed ampersands being displayed in the instance setup wizard.
- Fixed using custom paths in the instance setup wizard for portable instances.
- Fixed “cache” folder being created and considered a new instance. If an instance called “cache” suddenly appears, you can just delete it.
- Fixed selecting a newly created profile with the “select” button in the profile dialog.
- Fixed issue running executables in MO2 when MO2 is installed in a folder with a space.
- Improvements to Stalker: Anomoly support (save files, mod installs, mod contents, etc.). Thanks Qudix!
- Improvements to Kerbal Space Program support.
- Oblivion: Improved OBSE support by automatically setting it up (you still need to download and install OBSE yourself).
- Skyrim SE: Updated script extender for new messages introduced in SKSE 2.1.3. Thanks ianpatt!
- Added Brave (the web browser) to the default executable blacklist.
- Improved tab order in the instance creation dialog.
- Improved logging of the Windows version (changed due to Windows 11).
- Improved “visit Nexus” functionality for games that don’t have Nexus pages.
- Updated libloot (the sort button) to 0.17.1 to match the new version of LOOT.
- Updated lootcli for LOOT 0.17.x masterlist and game detection changes.
V2.4.2
- Added basic support for Divinity: Original Sin (Enhanced Edition and Classic)
- Added basic support for Dragon’s Dogma: Dark Arisen (thanks, EzioTheDeadPoet!)
- Added drop-down to “Visit Nexus” toolbar icon when multiple game downloads are supported
- Added “.ini” as a valid file extension for Bethesda game files
- Added dialogs and logs informing users that Microsoft Store and Gamepass games are not supported by Mod Organizer
- USVFS: Fixed problems seen by those with Windows builds 21313 and up (only currently available with Windows Insider)
- Fixed “select” button in the profiles dialog not selecting a profile
- Fixed crash when opening mod information dialog for a mod that has been filtered out
- Reduced the log severity of a couple harmless failures (thanks, foresto!)
- Fixed tutorials for Bethesda games
- Fixed “.” and “..” showing up as files in the mod installer
- Fixed downloading files that contain invalid Windows characters
- Pulled in fixes to the Paper Automata theme by 6788
V2.4.1
- Game support
- New basic game support:
- Monster Hunter: World
- Blade & Sorcery
- Assetto Corsa
- X-Plane 11
- Microsoft Flight Simulator 2020
- Add full support for Enderal Special Edition (Steam version only)
- Use the Skyrim Special Edition plugin for the Nexus version of EnderalSE and enable downloads for Enderal SE in the plugin settings.
- Improvements:
- Improved basic support for Darkest Dungeon (saves display, archive checking).
- Added VR support for No Man’s Sky
- Improved saves support for STALKER: Anomaly
- Improvements
- Better logs for issues when loading the Python proxy (#1451).
- The save list now displays both the name of the save (as specified by the game plugin) and the name of the save file.
- Added scrollbars to some tabs in the setting dialogs to make it smaller.
USVFS - Fix an issue with DRM that prevented some games to be run through MO2.
- Fixes
- Fix an issue where styles would not affect the download list anymore (#1427).
- Fix an issue with UNC paths failures for downloads folder (#1423).
- Fix incorrect sorting by priority while grouping by category (#1426).
- Fix an issue where users could get stuck in the tutorial (#1419).
- Add missing translations in release (#1420).
- Fix mod list not always showing available updates (PRs #1417 and #1431).
- Fix “Send to separator… ” when sorting by descending priority (#1421).
- Fix multiple issues with sorting the download list (#1438).
- Fix the priority of newly created mod with “Create Empty Mod”.
- Fix an issue with load order when using locked plugins.
- Plugins
- BAIN Wizard installer
- Fix crash at the end of the installation (#1445).
- Fix not-selected ESPs being installed anyway.
- OMOD installer
- Partially fix an issue with OMOD modifying BSA archives.
- FNIS Tool
- Fix patch list filename for Skyrim VR in FNIS Tools (PR #17).
- Fix Basic Games crashes on startup
- if appmanifestbacks folder exists (#1422),
- when a steam library is not accessible (#1425).
- Configurator is now disabled by default.
- BSA extraction is only enable by default for alternate source.