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Subnautica 2 Mod Manager

Paid Windows

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What Subnautica 2 Mod Manager is

Subnautica 2 Mod Manager is a free, open-source Windows application for managing Subnautica 2 modifications locally. It handles PAK content mods and UE4SS script or blueprint mods from loose files and archives. You can add mods by dragging them in or using a button; ZIP, RAR, and 7Z files are extracted and classified automatically. Imported mods are stored in a packed, LZMA-compressed Data.dat library, while the game folder contains enabled mods from the active profile. The manager supports enabling, disabling, reordering, conflict detection, and named profiles with separate mod sets and load orders. It can install UE4SS after checking its GitHub hash, and install ReShade and shader packs with profile presets and certificate verification. Profiles can be shared peer-to-peer or as offline .s2profile files. It launches the game through Steam and requires Windows 10 or 11 on x64.

Who it suits

It suits Windows players who manage multiple Subnautica 2 mod configurations. It is also useful for users who need profile sharing, load-order control, and UE4SS or ReShade support.

What it does well

  • Free and open-source
  • Named profiles isolate mod sets
  • Detects mod conflicts
  • Supports ZIP, RAR, and 7Z imports
  • Includes profile sharing options

What to know first

  • Windows 10/11 x64 required
  • Mods require manual import
  • Deployment uses file copying

Verdict

Subnautica 2 Mod Manager combines profile-based organization, conflict detection, and archive handling in a local Windows tool. Its Steam, UE4SS, ReShade, and profile-sharing integrations add workflow options for players managing varied setups.

Facts from Subnautica 2 Mod Manager's own pages

Conflict detection
The manager warns about enabled PAK mods with the same pak name and UE4SS mods targeting the same Mods folder. · github.com, 12 Oct 2026
Deployment method
copy · github.com, 20 Sept 2026
Game launch
The manager launches Subnautica 2 through Steam with the active profile in place. · github.com, 11 Oct 2026
Integrations
The manager launches Subnautica 2 through Steam and checks GitHub for release updates. · github.com, 12 Oct 2026
Library
Mods are stored in a packed, LZMA-compressed Data.dat library, while the game folder holds enabled mods from the active profile. · github.com, 11 Oct 2026
License
The repository identifies the project as MIT licensed. · github.com, 12 Oct 2026
Maker focus
The maker's site describes Magma as a security software engineer specializing in anti-tamper solutions, authentication systems, and high-performance Windows applications. · magmamc.dev, 11 Oct 2026
Maker location
The maker's GitHub profile lists Birmingham as its location. · github.com, 12 Oct 2026
Maker profile
The maker's GitHub profile lists Magma Studio Ltd and Birmingham. · github.com, 11 Oct 2026
Mod installation
Mods can be added by drag-and-drop or button, and ZIP, RAR, and 7Z archives are extracted and classified automatically. · github.com, 12 Oct 2026
Mod library
It stores added mods in a packed, LZMA-compressed Data.dat library and keeps only enabled mods from the active profile in the game folder. · github.com, 12 Oct 2026
Mod management
Users can enable or disable mods, reorder them, and switch between named profiles with isolated mod sets and load orders. · github.com, 11 Oct 2026
Mod profiles
Yes · github.com, 20 Sept 2026
Mod source access
manual import · github.com, 20 Sept 2026
Mod support
It manages PAK content mods and UE4SS script and blueprint mods from loose files or archives. · github.com, 11 Oct 2026
Platform requirement
The project lists Windows 10/11 x64 as a build requirement and instructs users to launch S2ModManager.exe. · github.com, 12 Oct 2026
Profiles and load order
Users can create named profiles, switch between isolated mod sets, and arrange mod load order by dragging items in the list. · github.com, 12 Oct 2026
Profile sharing
Profiles can be streamed peer-to-peer over the internet or exported and imported as offline .s2profile files. · github.com, 12 Oct 2026
Purpose
It is a local mod manager for Subnautica 2 that installs, organizes, and launches PAK content mods and UE4SS script or blueprint mods. · github.com, 12 Oct 2026
ReShade
It supports installing ReShade and shader packs and managing presets per profile; the installer is checked against a pinned signing certificate before running. · github.com, 12 Oct 2026
Sharing security
Peer-to-peer profile transfers use an Ed25519 signature pinned to the connection key to authenticate the host. · github.com, 12 Oct 2026
Supported platforms
windows · github.com, 20 Sept 2026
UE4SS
It can download the latest UE4SS release from GitHub, check it against GitHub's published hash, and install it into Binaries/Win64. · github.com, 12 Oct 2026

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