ISKL Subnautica 2 Launcher

ISKL Subnautica 2 Launcher

🌊 EARLY RELEASE — v0.2.0

An early public build, shaped by player feedback. 

✨ FEATURES OVERVIEW

ISKL Subnautica 2 Launcher — a powerful, portable tool for managing your

Subnautica 2 mods. Detect the game, install UE4SS, enable/disable mods,

install by drag-and-drop, share your setup — all in one clean window.

🔍 Detection

Auto-detects Subnautica 2 from Steam and Epic Games. No manual path hunting —

the launcher walks the storefront libraries and finds your install.

🚀 UE4SS — Detect & Auto-Install

UE4SS (the Unreal Engine 4/5 Scripting System) is the mod loader most script

mods need. The launcher:

• Detects whether UE4SS is installed in your game's bin folder.[/*]

• Installs it for you — one click downloads the correct Subnautica 2 UE4SS

build and sets it up in the right place. No manual unzipping.[/*]

• Offers to install UE4SS on first run if it's missing.[/*]

• Shows the installed version and can update it to the latest with one click.[/*]

• Warns you if you add Lua / DLL mods while UE4SS isn't installed — so a mod

never silently fails to load.[/*]

• Optional debug console toggle for troubleshooting script mods.[/*]

📥 Drag-and-Drop Install

Drop a .zip, .7z, .rar archive, a bare .pak file, or a folder straight

onto the AVAILABLE MODS panel. The launcher:

• Detects whether it's a UE4SS mod (Lua / DLL) or a cooked .pak mod, and installs

it to the right place — Binaries Win64 ue4ss Mods or Content Paks ~mods .[/*]

• Keeps .pak / .ucas / .utoc sibling files together so IoStore mods load.[/*]

• Handles multi-mod archives, asks before overwriting an existing mod.[/*]

• Uses your installed 7-Zip when present for fast .7z extraction.[/*]

↕️ Mod Management

Enable / disable UE4SS Lua & DLL mods and pak mods with a click — the launcher

writes the enabled.txt UE4SS toggle for you. Search, filter by custom tags, and

remove a mod from disk via right-click → Delete mod. If any mods end up in an

outdated folder, a one-click banner moves them to the correct location.

🏷️ Custom Tags

Right-click any mod → Edit tags… → tag it however you like ("Vehicles", "QoL",

"Creatures"…). Chip filters above the list show mod counts per tag.

📂 Profiles

Save your mod set as a named profile. Export it as a single iskl:// link to

share an exact setup with friends. Load / import in one click.

🔔 Nexus Integration

One-click "open on Nexus" for mods that ship a NexusId. Polite 24h update checks —

no API key, only the public mod page is read.

🛡️ Safety

Automatic backup of your save files before launch, Mark-of-the-Web stripping on

every install, and an "Open logs folder" button for quick bug reporting.

📦 Installation

• Unzip the archive so the "ISKLLauncher-S2" folder sits anywhere inside (or next

to) your Subnautica 2 install — or honestly, anywhere at all.[/*]

• Run ISKLLauncher.App.exe.[/*]

Portable mode: if the launcher sits inside your Subnautica 2 folder it runs

fully portable — all data lives next to the exe:

• ISKLLauncher-S2 state.json[/*]

• ISKLLauncher-S2 presets [/*]

• ISKLLauncher-S2 backups [/*]

• ISKLLauncher-S2 logs [/*]

Otherwise data goes to %APPDATA% ISKLLauncher.S2 . Either way, nothing else on

your system is touched.

🗑️ Uninstall

Delete the launcher folder. No registry keys, no leftovers.

ℹ️ Notes

• No dependencies. The launcher is a single self-contained .exe — no .NET install

needed, no required mods.[/*]

• UE4SS is not bundled — but the launcher installs it for you in one click.

Lua / DLL script mods need it; pak mods don't.[/*]

• First launch may take a few seconds to unpack the runtime (single-file build).[/*]

• If SmartScreen flags the binary: "More info" → "Run anyway". The build is unsigned.[/*]

• Subnautica 2 modding is brand new — expect rapid updates as conventions settle.[/*]

🔧 For Mod Authors

Ship an optional manifest.json (Thunderstore-style) in your mod folder and the

launcher shows rich info — name, version, author, description, website:

{

  "name": "Your Mod",

  "version_number": "1.0.0",

  "author": "Your Name",

  "description": "One line about the mod.",

  "website_url": "https://..."

}Without it, the folder name is used. Zero impact on the mod itself.

🌐 Language

English (default) and Russian. Switch in Settings → LANGUAGE — instant, no restart.

Support the project

A one-person project, developed in the open and free to use. If it made your

Subnautica 2 modding easier — endorsements and any support keep it alive.