Mod Organizer 2 vs RimSort

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.

RimSort is a free, GPL-3.0 community mod manager and sorter for RimWorld, with Windows, macOS, and Linux support. It orders mod lists from mod data, community rules, and Steam data, while detecting conflicts and warning about missing dependencies or incompatibilities. Lists can be imported, exported, saved, and appended. SteamworksPy connects with the Steam client and can launch the game through the Steam API; the Steam Browser downloads Workshop mods through SteamCMD or the client, even without a Steam RimWorld copy. RimSort also handles Git-based mods and databases, shares logs through 0x0.st, and shares mod lists through Rentry.co. Its todds DDS encoder offers three texture-optimization presets. Database tools build, compare, merge, publish, and edit rules. Optional external metadata databases require separate configuration. Releases may trigger antivirus false detections, and Snap-installed Steam is unsupported on Linux.