







Subnautica After Zero Mod brings the famous underwater survival game into your Minecraft world. It continues the story a few years after the events of Subnautica Below Zero. This mod adds familiar alien fish, special tools, and massive ocean biomes to explore. It is built specifically to work with a custom story map for the best adventure. You can swim through deep cave networks, find lost technology, and try to survive against giant sea monsters.
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Features:
- Ocean Biomes: Adds new underwater areas like kelp forests, safe shallows, and freezing icebergs.
- Alien Life: Spawns many different types of fish and dangerous Leviathans from the original games.
- Precursor Tech: Lets you find and explore huge alien facilities hidden deep in the world.
- Gives you special tools and items needed to survive underwater.
- Generates deep cave networks and dark voids to explore.
- Adds giant glowing plants that grow near underwater heat vents.
- Changes the way you survive by forcing you to manage oxygen and resources.
How to Play:
- Download and load the official custom map made for this mod to get the full story.
- Gather a group of exactly 2 to 4 players to start the adventure.
- Use your new tools to explore the ocean and find hidden alien technology.
- Stay away from the deep void areas and giant Leviathans while you gather resources.
Screenshots:








Subnautica After Zero Mod Download Links
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.1
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: In MC Java Mods, or directly above on this page.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
Verified by MCModsHub
- Downloads as 395139.mcaddon
- Download size: 95.5 MB
- Download link checked 26 Sept 2026 — working
- Mirrored on our own servers — the download does not depend on the original host
These come from our own check of the pack file, not from the source page.