Mod Organizer 2 vs Prismo
Mod Organizer 2
github.comPrismo
prismo-studios.devSide by side
| Figure | Mod Organizer 2 | Prismo |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | Yes | — |
| Windows | Yes | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| Plans published | 1 | 1 |
| Spec score · Game Mod Managers | 8.6 (#9) | 8.4 (#13) |
| Spec score · Mod managers | 8.5 (#10) | 8.5 (#12) |
| Automatic updates | Yes | Yes |
| Deployment method | virtual | copy |
| Downloads | The project provides downloads through GitHub Releases and Nexus Mods, with the installer usually preferred for ease of installation. | The repository lists Windows .exe, Linux AppImage and .deb, and macOS .dmg installers. |
| Free plan | Yes | Yes |
| Game support | Mod Organizer 2 supports 64-bit games such as Skyrim Special Edition and Fallout 4, as well as the 32-bit games supported by MO1. | Zephyr supports about 200 games out of the box. |
| Mod profiles | Yes | Yes |
| Mod source access | built-in | built-in |
| Open source | The Mod Organizer repository is public and licensed under GPL-3.0. | Zephyr is licensed under GPL-3.0 and its source code is available on GitHub. |
| Purpose | Mod Organizer is a tool for managing mod collections of arbitrary size and installing or uninstalling mods. | Zephyr is a desktop mod manager for browsing, installing, updating, and organizing game mods. |
| Support | Issues are reported through the GitHub page or the open Discord server, which is also used for dev-build testing, bug investigation and suggestions. | The documentation directs users to Discord for documentation issues and GitHub Issues for app bugs. |
| Supported platforms | windows | multi-platform |
Plans
In their own words
Mod Organizer 2
Mod Organizer 2 is a free, open-source Windows tool for managing game mod collections through a virtualized setup. It supports installing and uninstalling mods, organizing profiles, detecting conflicts, and automatic updates. The project describes it as a tool for people who experiment with mods and says it can handle collections of arbitrary size. Supported games include 64-bit titles such as Skyrim Special Edition and Fallout 4, along with the 32-bit games supported by Mod Organizer 1. Its basic games plugin can detect installations from Steam, GOG, Origin, Epic Games or Legendary, and EA Desktop. A mod data checker can identify and correct archive layouts for automatic installation. Downloads are available through GitHub Releases and Nexus Mods; the installer can also create a portable installation. Version 2.5.0 requires Windows 10 1809 or newer, or Windows 11. The virtual filesystem does not work with Windows Store or Gamepass packaging, so those versions of otherwise supported games are not usable. The community-maintained project is licensed under GPL-3.0.
Prismo
Prismo publishes Zephyr, a free, open-source desktop mod manager for Linux, macOS, and Windows. Zephyr lets users browse, install, update, and organize mods for about 200 games. Built-in access combines Thunderstore and CurseForge browsing. Users can create and switch between profiles for each game, then share a profile through a code or link. Optional cloud synchronization uses Discord sign-in to synchronize profiles across devices. The app also includes an Archipelago multiworld randomizer with a bundled Python runtime, a configuration editor, gamepad navigation, and seven languages. Without sign-in, profiles, configuration files, and preferences remain on the device, while public mod metadata is requested anonymously. Cloud-enabled profile archives and metadata are stored with Prismo Studios’ hosting provider in France. Zephyr is licensed under GPL-3.0, with source code on GitHub. Installers include Windows .exe, Linux AppImage and .deb, and macOS .dmg files.