Alterra Sea Voyager (UPDATED)

⭐ ⭐⭐ (2,528 endorsements) 📥 120,636 downloads 📌 v3.1.0 📅 11/27/2020
🟠 Updated over a year ago

By Kallie23 · Vehicles and Upgrades

⬇ Download Mod Source: Nexus Mods 📅 Updated: 8/14/2025 📅 Created: 11/27/2020
⚠️ Install Order · 2 steps
1🛠️ BepInEx — BepInEx framework Download ↗
2🧩 QModManager — QModManager Download ↗

Install in this order, then this mod last — most mods fail to load without their framework and dependencies in place.

🔍 Analysis

  • 👍 2.1% endorsement rate — high engagement, a strong quality signal
  • 🏆 #6 of 124 Vehicles and Upgrades mods in this game by downloads

📋 About This Mod

IMPORTANT NOTICE

There is a reason I did not release this update sooner. This mod suffers from many new physics-related bugs due to the Living Large update. Some of these issues are NOT FIXABLE, so please use it at your own discretion, and make sure to SAVE OFTEN!

I genuinely considered scrapping the idea due to how many physics issues there are. You have been warned, so please do not blame me if something goes wrong!

Installation

  • []If you do not already have both, please download and install BepInEx and Nautilus.[/]

    []Download the zip file.[/]

    []Extract the zip file.[/]

    []Copy the plugins folder within the download and paste it into your BepInEx folder. On Steam, it is here by default: C:\Program Files (x86)\Steam\steamapps\common\Subnautica\BepInEx.[/]

    []Launch Subnautica. If you want to check if it's installed correctly, check the in-game options menu, or a mod manager if you have one installed.[/]

    []If you have any trouble installing, please ask for help in the Subnautica Modding Discord server.[/]

    Features

    • []This mod revolves around one new vehicle: the Sea Voyager. Unlike most vehicles, it cannot be submerged underwater.[/]

      []Sea Voyager fragments now naturally spawn in the Kelp Forest.[/]

      []The ship features hands-free navigation, which lets you relax while it moves![/]

      []The Sea Voyager also has multiple large rooms where you can build anything you like.[/]

      []It is solar-powered, meaning it cannot regenerate power at night![/]

      []You can find two Seamoth / Prawn Suit docks on the deck. You can also utilize your vehicle (preferably Prawn Suit) as a diving bell while attached to the ship.[/]

      []Last but not least, you can also place those docks separately anywhere in the world, or at least anywhere above water.[/]

      You will be safe from most threats, maybe aside from the Gargantuan Leviathan. You are free to walk around the inside of the vehicle or the upper deck while the ship is moving, but keep note that this is a major safety hazard. Again, frequent saving is suggested.

      How to dock

      []Make sure the docking arm is extended over the water.[/]

      []Drop the cable into the water with the Down Arrow button.[/]

      []Approach the bottom of the cable with a vehicle.[/]

      [*]If you're in

🤖 AI-enhanced — based on mod data

Adds the Alterra Sea Voyager, a cargo ship larger than the Cyclops, for fast ocean travel and ample building space in Subnautica. Popular with 2,528 endorsements and over 120k downloads, last updated August 2025.

✨ Key Features

Adds a new cargo ship vehicle to the game
Slightly larger than the Cyclops
Provides plenty of space for building
Allows quick travel across the ocean

📊 Pros & Cons

✅ Pros

  • Huge community favorite with 2,528 endorsements and over 120k downloads
  • Bigger than the Cyclops means more room for your base-on-the-go
  • Still actively updated as of August 2025

⚠️ Cons

  • No compatibility notes for other mods or game versions
  • May require a fresh save or creative mode to spawn the vehicle
🎯 Is This For You?
For Subnautica players who want a mobile base with more space than the Cyclops. Perfect for builders and explorers who love long ocean voyages. Skip if you prefer vanilla vehicles only.
📦 Install:Easy· Under 1 minute

💡 Beginner Tips

  • Check the mod's page for any required dependencies before installing
  • If you're using a mod manager, let it handle file placement to avoid conflicts
  • Test the Sea Voyager in a creative save first to see how it handles

📊 Mod Details

Game
Subnautica Mods
Author
Kallie23
Version
3.1.0
Downloads
120,636
Endorsements
2,528
Category
Vehicles and Upgrades
Created
11/27/2020
Updated
8/14/2025

🧩 Commonly Used Together

Users add these mods to the same collections — a real compatibility signal, not an AI guess.

🔧 How to Install Subnautica Mods

Download from Nexus.

📖 Full step-by-step install guide for Subnautica →

Visit the official mod page for specific installation instructions for this mod.

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