Crystal Cave Map and Alterra Map
⚪ Last updated 2021⚠️ Install Order · 1 step
Install in this order, then this mod last — most mods fail to load without their framework and dependencies in place.
Preview

🔍 Analysis
- 👍 3.0% endorsement rate — high engagement, a strong quality signal
- 🏆 #6 of 79 Miscellaneous mods in this game by downloads
📋 About This Mod
Additional maps for the Map mod: Crystal Cave Map and Reworked Alterra Map
The crystal cave map was created by building drones along the walls, so it is rather rough.
But since there is no other, it may come in handy for someone.
Of course there is a map of the ground, but even at sea I am more used to orienting myself relative to the coast, not to mention traveling by land.
This map is a rework of the Alterra map from the Delta base, with the addition of some marks
(there is also an absolutely clean map in the folder, change it, or build your own based on it)
Installation
1. For this map to work, the qModManager and Map mod must be installed.
2. Unpack files of this mod into the ...\QMods folder.
This will add to ... \ QMods \ SubnauticaMap_BZ \ maps \ Rybak folder with two new maps.
The same folder contains blank maps without marks.
If you want to use a clean surface map, rename the "clear.png" map to "sea_level.png" or create an additional .json file similarly
To uninstall the mod simply delete the Rybak folder from ... \ QMods \ SubnauticaMap_BZ \ maps \
Adds two new map options—Crystal Cave Map and a Reworked Alterra Map—for the base 'Map' mod. Designed for players who already use that mod and want more detailed or alternative in-game maps. With 717 endorsements, it's a popular community addon.
✨ Key Features
📊 Pros & Cons
✅ Pros
- Community-approved with 717 endorsements — players clearly like these maps.
- Adds two distinct map options, giving more variety over the base Map mod.
- Free addon with solid download numbers (23,554) showing real usage.
⚠️ Cons
- Requires the base 'Map' mod — not a standalone addon.
- Last updated in 2021 — potential compatibility issues with recent game updates.
For players already running the 'Map' mod who want a fresh look at Crystal Cave or a reworked Alterra layout. If you're happy with the default maps, skip this — it's purely additive.
💡 Beginner Tips
- Install the base 'Map' mod first, then place these additional map files into the same mod folder.
- If the new maps don't appear, restart the game and verify the Map mod is enabled in your mod manager.
- Check the Map mod's folder structure to ensure the new map files are placed in the correct subdirectory.
📊 Mod Details
- Game
- Subnauticabelowzero Mods
- Author
- Rybak
- Version
- 1.0
- Downloads
- 23,554
- Endorsements
- 717
- Category
- Miscellaneous
- Created
- 11/30/2021
- Updated
- 11/30/2021
🔧 How to Install Subnautica: Below Zero Mods
Download from Nexus Mods.
📖 Full step-by-step install guide for Subnautica: Below Zero →
Visit the official mod page for specific installation instructions for this mod.
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