Lost River Survival Challenge
Subnautica — Mods & Enhancements
This is an early save game mod for Subnautica that places you in the center of the Lost River biome. It's a challenge scenario for players who want a tough survival start. With 20 endorsements and 543 downloads, it's a niche mod that offers a unique starting point.
📦 Full mod page on discovermods
Downloads, ratings, compatibility info, installation guides, and user reviews.
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AdventureExample
Downloads: 543 | Endorsements: 20💡 Notes
By GreyMtnFox | v1.4 | 20 endorsements
🎯 Tips & Tricks
Make sure to back up your current save files before replacing them with this one.
Check the mod's comments or forum posts for any known issues with the current game version.
If the save doesn't load, verify that you're placing it in the correct save folder for your platform.
🔧 Troubleshooting
Mod not working
Check load order and required dependencies. Read the full mod description.
⚠️ Common Mistakes
- Installing multiple mods that modify the same files without checking compatibility
👍 Pros
- Great for players who want a fresh, hardcore survival experience
- Tiny mod with a dedicated following (20 endorsements)
- Simple concept: drop-in save file, no complex setup
👎 Cons
- Not updated since January 2022 — may not work with the latest Subnautica version
- Only 20 endorsements, so it's not widely tested
- No instructions provided — you'll need to figure out where to place the save file