About this project

NK-Forge Space Marine 2 Mod Manager is a Windows-only Electron/TypeScript desktop application for managing mods and launching the game Warhammer 40,000: Space Marine 2. It detects installations from Steam, Xbox / PC Game Pass, and Epic Games (experimental). Key features include a Mods Vault for storing inactive mods, a separate Mod Play Vault for modded save/config snapshots, and toggle-based mod enabling/disabling. It offers an Apply (no launch) workflow to prepare mods ahead of time, separate Mod Play and Vanilla Play launch paths, automatic save mirroring after tracked modded sessions, and manual game-data mirroring on demand. A Watcher Activity panel provides visibility into file activity. The application creates transactional pre-reconcile backups, meaning incomplete snapshots are never treated as valid backups. Users can configure backup retention (1-10 backups, default 3) to manage disk space. Default data is stored under %APPDATA%\nkforge_sm2_mod_manager. Development requires npm, with commands for installing dependencies, running the dev environment, type-checking, building production assets, and creating the Windows installer. The project is MIT licensed. The installer is distributed via Nexus Mods and is not currently code-signed.