Seamoth Air Bladder
🟡 Updated this year⚠️ Install Order · 2 steps
Install in this order, then this mod last — most mods fail to load without their framework and dependencies in place.
Preview
🔍 Analysis
- 👍 1.9% endorsement rate — high engagement, a strong quality signal
- ✅ Updated 123 days after the latest game patch — actively maintained
- 🏆 #283 of 456 Gameplay mods in this game by downloads
📋 About This Mod
Seamoth Air Bladder
Add an emergency ascent module to your Seamoth
Overview
This mod adds a new upgradeable module for the Seamoth that allows for rapid emergency ascents. The air bladder module provides a quick escape option when you need to reach the surface fast.
Features
Emergency Ascent System
Activate the air bladder module to rapidly ascend to the surface. The module depletes air while active and automatically deflates when you reach the surface.
Limited Air Supply
The bladder contains 100 units of air that depletes during use. Manage your ascents carefully to avoid running out mid-rise.
Automatic Recharging
Air automatically recharges when you're near the surface, or docked in a moonpool or cyclops. No manual intervention required.
Visual HUD Indicator
A circular bar appears next to the module slot showing your remaining air at all times.
Persistent State
Air levels are saved per vehicle and persist across game sessions. Each Seamoth maintains its own air state.
Configurable Buoyancy
Adjust the ascent speed through the in-game options menu to match your preference.
Single Module Limit
Only one air bladder module can be installed per Seamoth.
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[]Craft the Seamoth Air Bladder module (requires: Wiring Kit, Silicone x4, Bladderfish x4)
[
]Install it in any Seamoth module slot[]Activate the module while underwater to inflate and ascend
[]The module automatically deflates when reaching the surface
[]Air recharges automatically when near the surface
Configuration
Access the in-game options menu to adjust:
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[]Buoyancy Force - Controls ascent speed (range: 1000-5000)
Localization
Supported in 12 languages:
English, French, Spanish, German, Italian, Portuguese, Russian, Japanese, Korean, Chinese (Simplified), Chinese (Traditional), Polish, Dutch
Requirements
-
[]BepInEx
[
]NautilusInstallation
-
[]Install BepInEx and Nautilus if you haven't already
[
]Download this mod - Extract to your Subnautica BepInEx/plugins folder
Source Code
https://github.com/visolar6/Seamoth-Air-Bladder
-
[]Install BepInEx and Nautilus if you haven't already
-
[]BepInEx
-
[]Buoyancy Force - Controls ascent speed (range: 1000-5000)
Adds an air bladder module to the Seamoth for emergency ascents, with limited air capacity, automatic recharging at surface/moonpool/cyclops, persistent air state saving, and a HUD indicator. A niche gameplay mod for Subnautica players who want extra safety in deep dives.
✨ Key Features
📊 Pros & Cons
✅ Pros
- Small but dedicated following (19 endorsements) — niche mods like this often have loyal fans.
- Persistent air state saving means you don't lose progress on reload — a thoughtful touch.
- HUD indicator keeps you informed without breaking immersion.
⚠️ Cons
- Low endorsement count (19) suggests limited testing — expect potential bugs.
- Last updated in 2026 — may not be compatible with future game patches.
For Subnautica players who want an extra safety net during deep dives and enjoy quality-of-life additions. Skip if you prefer vanilla gameplay or don't use the Seamoth often.
💡 Beginner Tips
- Place the mod files in the Subnautica BepInEx/plugins folder if you use BepInEx, or follow the mod manager's install instructions.
- Test the air bladder in shallow water first to understand its capacity and recharge mechanics.
- Keep an eye on the HUD indicator — it's your best friend when you're low on air.
📊 Mod Details
- Game
- Subnautica Mods
- Author
- visolar6
- Version
- 1.1.1
- Downloads
- 990
- Endorsements
- 19
- Category
- Gameplay
- Created
- 1/31/2026
- Updated
- 2/3/2026
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