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Adds a "live" map to the Subnautica game.
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SubnauticaWatcherInstaller Fixed a bug that ignored SteamFinder results Dec 25, 2017
SubnauticaWatcherMod Added missing vendor file Dec 16, 2017
SubnauticaWatcherWikiScraper.Tests fixed inccorrect paths for nuget packages. Nov 25, 2017
SubnauticaWatcherWikiScraper added a base layer manager to handle base layer switches Nov 26, 2017
docs Updated map to support view direction. This should implement #6 Dec 16, 2017
subnautica-map Added biome legend as an option from the menu. Feb 6, 2018
.gitignore Tidied up map data folder. Dec 5, 2017 Initial Commit Oct 31, 2017
SubnauticaWatcher.sln.DotSettings Basic HTTP static server. Nov 2, 2017
appveyor.yml Added biome legend as an option from the menu. Feb 6, 2018
build.ps1 simplied appveyor build to ensure I correctly pick up errors Nov 24, 2017
project-version.cs updated version number for next release Nov 23, 2017
readme.installation.subnauticawatcher.txt Added logging for troubleshooting. Added an extra top-level info file… Nov 23, 2017 updated version number for next planned release Jan 17, 2018
subnautica-watcher.proj updated data Jan 17, 2018
version.json Added biome legend as an option from the menu. Feb 6, 2018

SubnauticaWatcher Mod

Build status GitHub license GitHub release


This mod adds a "live" map to the Subnautica game. This can be considered a spoiler for the game.

Should the Subnautica development team ever add an auto-map or ingame map feature, this mod will be obsoleted.


I tend to get lost a lot in Subnautica. Exploring is great fun, but once I've found something, once I know where something is, I really want to be able to find it again. Beacons help a great deal, but for some things, like resources, when I don't have a beacon available or when I simply want to know which way to turn to get to a biome a map is invaluable.

If I were really trapped on 4546B I'd definitely be drawing a map, pinning it to wall in my cyclops, or drawing it in AlterraPaint on my PDA.

This mod is my personal answer to not having an in-game map. I'm making it available as I'm sure there must be at least one other person that would like an in-game (ish) map.


Check out the List of Features.

Change Log

  • v0.4 - Day / Night indicator
  • v0.5 - Leviathan Spawns now in their own layer.
  • v0.6 - Now able to automatically switch to correct base layer (e.g. Lost River, Lava Zone)
  • v0.7 - Installer now handles cases where Subnautica is not in the default Steam library.
  • v0.8 - New and updated biome layers
  • v0.9 - Player view direction now indicated on map

Mod in Use


The instructions below should work for experienced users. If you're struggling with the installation, take a look at the The Really Detailed Installation Guide

Warning: While attempts have been made to ensure this mod does not interfere with other mods, this cannot be guaranteed.

Warning: You may need to repeat steps 4 to 6 whenever Steam updates Subnautica.

  1. Download the latest Release zip
  2. Extract the zip into your Subnautica installation folder, (usually Steam\steamapps\common\Subnautica)
  3. Unless updating, or unless you have another mod installed it should not normally require overwriting of anything.
  4. In your Steam\steamapps\common\Subnautica\SubnauticaWatcherInstaller folder run SubnauticaWatcherInstaller.exe
  5. Click the "Install" button.
  6. Check for errors, then exit SubnauticaWatcherInstaller.exe.


  1. Run Subnautica as usual
  2. Open Steam Overlay (usually by pressing "shift-tab")
  3. Select "Web Browser"
  4. Enter the URL: http://localhost:63030


Untrusted Publisher / Application

If you receive this warning from Windows, it's because this application isn't signed.

If you decide you want to trust this program, or you've read the source code and assured yourself it's benign, then you can run the program anyway.

My install is not detected!

The installer should correctly find Subnautica in almost all cases. One edge case where it fails to correctly detect your install location is if you've moved your install.

For example you installed Subnautica in the default location, then moved or re-installed it on a different drive.

The problem is that the default/old installation folder (usually c:\program files (x86)\steam\steamapps\common\Subnautica) still exists.

Please delete or rename this folder and try installing again.

Steam -102 Error

It's been reported that sometimes you get an error from Steam when typing the full URL into the Overlay Browser. Using merely localhost:63030 without the protocol part (http://) appears to work around this issue.


As of version 0.3.0 the installer creates logs to help with error reporting and resolving issues.

You can find the logs in Steam\steamapps\common\Subnautica\SubnauticaWatcherInstaller\Logs\{date}.log

Restore Subnautica to pristine state

  1. Delete folder Steam\steamapps\common\Subnautica\Subnautica_Data\Managed
  2. This will remove not only this mod, but every single other mod/tools/change you've made to this folder.
  3. Open Steam
  4. Find Saubnautica in your games list
  5. Right-click and Select 'Properties'
  6. On the 'Local Files' tab click on 'Verify Integrity of Game Files...'

This will cause steam to re-download all files that might have been changed by this mod, or other programs/mods.

You can’t perform that action at this time.