Deathrun Below Zero
🟡 Updated this yearPreview

🔍 Analysis
- 👍 0.9% endorsement rate
- 🏆 #111 of 146 Gameplay Effects and Changes mods in this game by downloads
📋 About This Mod
Deathrun Below Zero turns Subnautica Below Zero into a roguelike experience that makes the game really really hard. You will have to use everything you know about the game to survive the extreme cold, more aggressive creatures, increased
Deathrun Below Zero
A rougelike difficulty mod for Subnautica Below Zero. It's pretty much the original, but for Below Zero.
One little note, there might be a few bugs, especially related to figuring out what the cause of death was. Also, the cold suits do not have any icons, I'm sorry. And as of right now, there is no way to view your stats. You can look at your stats in the stats file located in the mod folder. It's just a JSON file, so if you can read JSON, you can read your stats. I will add a screen to look at your stats in game later
Installation
- Install BepInEx and Nautilus
- Download this mod and unzip it into `SubnauticaZero/BepInEx` directory
- That's pretty much it
Deathrun Below Zero is a roguelike difficulty mod that tries to make the game a lot more difficult than the vanilla game. It adds new mechanics such as "The Bends", expands on the cold system, since the vanilla game doesn't really take advantage of it, and tries to incorporate more features that the vanilla game doesn't really touch.
Deathrun Below Zero is supposed to be hard. If you don't get very far, that's okay! The point is to see how far you can get, not necessarily to win. Most things in the game is configurable, so if you don't like one of the changes, you can turn down the difficulty or disable it entirely.
Increased Damage
All damage sources will deal significantly more damage than normal. Every creature will now pose a much bigger threat. You might want to be more aware of your surroundings
Increased Power Usage
Power costs (especially for the fabricator) have gone up significantly. Exiting your seatruck or prawn suit also costs energy now as well. Also, your lifepod has power now (it doesn't in the vanilla game for some reason?)
Extreme Cold
Sector Zero is very cold! You can't expect to last forever anymore. You will need to craft new suits to make sure you don't freeze to death. Most notably, you no longer remain warm underwater. You will need to pay attention to your surroundings, and make sure you are next to a warm biome at all times
Aggressive Creatures
Creatures on 4546B are extremely aggressive now. Be sure not to stay in one spot for too long and be aware of your surroundings.
Personal Crush Depth
Just like how your Seatruck has a crush depth, you do as well! Going too deep will cause you to succumb to the pressure of the water. Crafting more suits will probably help this
Differences to the First Game
As this is supposed to be sort of like a port of the mod from the first game, most things should be similar. However, there are a few notable differences
📊 Mod Details
- Game
- Subnauticabelowzero Mods
- Author
- LeNerd46
- Version
- 1.0.0
- Downloads
- 547
- Endorsements
- 5
- Category
- Gameplay Effects and Changes
- Created
- 2/19/2026
- Updated
- 2/19/2026
🔧 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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